| ABACUS/X | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | Data General JOSS dialect |
| Abrams APL Machine | 1970 | ⊕ United States | Phil Abrams machine implementation of APL | ||
| ABSET | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Set | ⊕ United Kingdom | Set-based language |
| Access | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Pick query language |
| ACTRAN | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Hybrid | ⊕ Germany | Hybrid simulation language |
| ADMINS/11 | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Information Retrieval | ⊕ United States | ADMINS for the PDP/11 |
| AGSTAT | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | Agricultural statistics package |
| AIDS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Command systems | ⊕ United States | Debugging system |
| ALEPH | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Grammar and Syntax-oriented | ⊕ United Kingdom | |
| ALGAMS | 1970 | ⊕ Other Russian/Soviet | ⊕ Russian Federation | ||
| Algol 6 | 1970 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Denmark | Version 2 of RC Algol |
| ALGOL 68-R | 1970 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL68s | ⊕ United Kingdom | |
| ALMA | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Performance | ⊕ United States | Music programming language |
| ALTEXT II | 1970 | ⊕ Editing and processing | ⊕ United States | ||
| AMBIT/L | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ List | ⊕ United States | AMBIT symbolic system for lists |
| AMBIT/S | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Patterns | ⊕ United States | Ambit symbolic system for strings |
| ANVAR | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | Statistics processing system |
| APPLE | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Map/Dictionary | ⊕ United States | |
| ARTA | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ Yugoslavia | Interactive animation language |
| ASAP | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Hierarchical DB | ⊕ United States | Event-aware DB language |
| Avtokod-M | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Other Russian/Soviet | ⊕ Russian Federation | Autocode for Russian computers |
| B | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ CPL, BCPL and B | ⊕ United States | Systems Programming Language |
| BALMSETL | 1970 | ⊕ Set | ⊕ United States | ||
| Basic Detap | 1970 | ⊕ Decision tables | ⊕ United States | ||
| BESTOP50 | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Report Generators | ⊕ United States | BESTOP language |
| BESTOPVL | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Report Generators | ⊕ United States | |
| BIOMOD | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Biological systems simulation language |
| Buckle data structure language | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Map/Dictionary | ⊕ Canada | |
| CAMPER | 1970 | ⊕ 3d shape | |||
| Cartoon Design | 1970 | ⊕ United Kingdom | |||
| CDL | 1970 | ⊕ Command systems | ⊕ United States | Control Definition Language | |
| CDL 1 | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Digital | ⊕ United States | Computer Definition Language |
| CEMMA | 1970 | ⊕ Expression oriented | ⊕ Poland | ||
| CFOR | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Non Standard FIV | ⊕ United States | Univac conversational fortran |
| CHIC | 1970 | ⊕ Japan | |||
| CIMS PL/I | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Other PL/Is | ⊕ United States | Courant PL/I |
| CISP | 1970 | ⊕ Plan languages | ⊕ United States | ||
| CISS | 1970 | ⊕ Japan | |||
| CLASS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Hybrid | ⊕ United States | |
| CODIL | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Other DPLs | ⊕ United Kingdom | Context-sensitive Information Manipulation language |
| CODIT | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Decision tables | ⊕ United States | Decision table language |
| COIF | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ Italy | |
| Compact Detap | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United States | |
| Computran | 1970 | ||||
| COMSL | 1970 | ||||
| CONCISE | 1970 | ⊕ Japan | |||
| COSMOS-2 | 1970 | ⊕ Japan | |||
| CPL | 1970 | ⊕ Other PL/Is | ⊕ Japan | JIPDEC Conversational PL/I | |
| CWIC | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Grammar and Syntax-oriented | ⊕ United States | |
| CypherText | 1970 | ⊕ Editing and processing | ⊕ United States | ||
| DAMN | 1970 | ⊕ Mechanical | ⊕ United States | ||
| DARE/ELEVEN | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Difference Equations | ⊕ United States | Continuous simulation languages |
| Data/BASIC | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Hierarchical DB | ⊕ United States | Scripting language for PickOS |
| dataBASIC | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | |
| Dataflow | 1970 | ⊕ United States | |||
| DATAFORM | 1970 | ||||
| Day state transitions | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ State transition tables | ⊕ United Kingdom | Transistion table system |
| DCALGOL | 1970 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States | Data Communications ALGOL |
| Decision Table Generator (Norway) | 1970 | ⊕ Decision tables | |||
| DECISUS | 1970 | ⊕ Decision tables | |||
| DECIUS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table language |
| Delta | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table language |
| Denert | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Multiline | ⊕ Germany | Two-dimensional Algol dialect |
| DETAB-70 | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United States | 1970 DETAB |
| DETOC | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | ISL decision table language |
| DG/L | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | CAD language |
| DIAL | 1970 | ⊕ Reactive | ⊕ United States | ||
| DIALS | 1970 | ⊕ Japan | |||
| DIBOL | 1970 | ⊕ Other DPLs | ⊕ United States | ||
| DIDOL | 1970 | ⊕ W European algorithmic systems | ⊕ Germany | ||
| DISCOURSE | 1970 | ⊕ Space planning | ⊕ United States | ||
| DMS | 1970 | ⊕ Japan | |||
| DOLPHIN | 1970 | ⊕ United Kingdom | |||
| Donaghey LP Language | 1970 | ⊕ Optimisation and LP | |||
| DRAWL 70 | 1970 | ⊕ 2d shape | ⊕ United States | Drawing language | |
| DSPLD | 1970 | ⊕ Digital | ⊕ United States | ||
| DTABL | 1970 | ⊕ Decision tables | ⊕ United States | Decision table language | |
| DTP IV | 1970 | ||||
| DTT | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table language |
| DYNAMO II | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Dynamo in AED for 704 |
| DZHOSS | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ Russian Federation | Russian cold-war clone of JOSS |
| ECAP II | 1970 | ⊕ United States | |||
| ECL | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Grammar and Syntax-oriented | ⊕ United States | Harvard Extensible Computer Language |
| ed | 1970 | ⊕ Grammar and Syntax-oriented | ⊕ United States | syntax-driven editor for unix | |
| EL1 | 1970 | ⊕ Grammar and Syntax-oriented | ⊕ United States | Extensible Language | |
| ELMOL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Synthesis | ⊕ United States | |
| EMILY | 1970 | ⊕ United States | |||
| Eshkol Movement Language | 1970 | ||||
| ESP | 1970 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ⊕ United States | Symbolic maths system |
| ESP | 1970 | ⊕ Wirth Algols | ⊕ United States | Extra Simple Pascal | |
| EULER-G | 1970 | ⊕ 2d shape | ⊕ United States | ||
| FAIL | 1970 | ⊕ Symbolic assemblers | ⊕ United States | ||
| FCPU | 1970 | ⊕ Microprogramming and HLAs | ⊕ Sweden | ||
| FILMAN | 1970 | ⊕ Japan | |||
| FIND 2 | 1970 | ⊕ United Kingdom | |||
| FOCAL-11 | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | PDP-11 version of FOCAL |
| Ford-Columbia Input Language | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Synthesis | ⊕ United States | Music programming language |
| FOREDECAL | 1970 | ⊕ France | |||
| FORTRAN-FORMAC | 1970 | ⊕ Germany | |||
| FORTRAN-RPG | 1970 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Report Generators | ⊕ United States | |
| GAP | 1970 | ⊕ Analog | ⊕ France | 2d circuits description language | |
| GAP | 1970 | ⊕ Symbolic assemblers | ⊕ United States | GEC assembler | |
| Gecom/Tabsol | 1970 | ⊕ Decision tables | |||
| Gentleman's Conversational Algol | 1970 | ||||
| GERTS III | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Graphical simulation system |
| GERTS III C | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Graphical simulation system |
| GERTS III Q | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Graphical simulation system |
| GERTS III R | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Graphical simulation system |
| GPDS | 1970 | ⊕ Process interaction | ⊕ United States | ||
| GPSS V | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | |
| Graphic-FORTRAN | 1970 | ⊕ Japan | |||
| GRIN-2 | 1970 | ⊕ 2d shape | ⊕ United States | GRaphical INteraction language | |
| GROOVE | 1970 | ⊕ Sound-Performance | Musical composition language | ||
| GTPL | 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Graph | Graph-theoretical extensions to Fortran | |
| HAL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Multiline | ⊕ United States | Spaceflight language |
| HEOPS | 1970 | ⊕ Russian Federation | Time-aware problem solving language | ||
| HGL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Graph | ⊕ United States | Hierarchical graph language |
| HPL | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Multics PL/Is | ⊕ France | Bull PL/I |
| HYPAC | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Hybrid extensions to Pactolus |
| IDF | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ CAI languages | ⊕ United States | HP CAI language |
| IMAGE | 1970 | ⊕ Space planning | ⊕ United States | ||
| IMP | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ CPL, BCPL and B | ⊕ United States | Extension of B with floating point |
| IMP 1.5 | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Early Autocodes | ⊕ United Kingdom | |
| IMS | 1970 | ⊕ United States | |||
| IMSL | 1970 | ⊕ Statistical | ⊕ United States | ||
| INTERLISP-D | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| INTUVAL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Visual language for describing urban scapes |
| JASP | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Activity scanning | ⊕ United States | Simulation language for a time-shared system |
| JOSTRAN | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | JOSS dialect for writing FORTRAN |
| Jym | 1970 | ⊕ France | |||
| KLISP | 1970 | ⊕ Japan | |||
| KWILT | 1970 | ⊕ United States | |||
| L | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Macros | ⊕ United Kingdom | |
| LABGOL | 1970 | ⊕ Other Algol 60s | ⊕ United States | Time-sharing algol | |
| LEAP | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Map/Dictionary | ⊕ United States | |
| LEPCGL | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Map/Dictionary | ⊕ United States | LEAP with sets |
| LINDA | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Computer simulation language for LSI hardware |
| LISP 1.75 | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| LLOGO | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | LISP LOGO |
| Logic Design Language | 1970 | ⊕ United States | |||
| LOGTAB | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United States | GE decision table system |
| LOWL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Intermediate languages and VMs | ⊕ United Kingdom | |
| LP-70 | 1970 | ⊕ PL-360s | ⊕ France | ||
| LPG | 1970 | ||||
| LPL | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ List | ⊕ United States | List Programming Language |
| LUNAC | 1970 | ⊕ United Kingdom | |||
| MALUS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ XPLs | ⊕ United States | GM XPL |
| MANAGE | 1970 | ⊕ Japan | |||
| MANOVA | 1970 | ⊕ United States | |||
| MAQUEST | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Response languages | ⊕ Israel | Questionairre processing language |
| MARSYAS | 1970 | ⊕ United States | |||
| MEDCOMP | 1970 | ⊕ United States | |||
| MERMAC | 1970 | ⊕ United States | |||
| META/LISP | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| microPLANNER | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Robotics | ⊕ United States | LISP implementation of PLANNER |
| MIDAS | 1970 | ||||
| MIL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ CAI languages | ⊕ United States | Minnesota Instructional Language |
| MIL | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Microprogramming and HLAs | ⊕ United States | Micro Implementation Language |
| MINI-COBOL | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ COBOL-68 | ⊕ France | GE-BULL |
| MINIMOP Command Language | 1970 | ⊕ United Kingdom | |||
| MIX/360 | 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Symbolic assemblers | ⊕ United States | Paper assembler for TAOCP |
| MODEL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Computer simulation language for LSI hardware |
| MOP | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ United States | Motion Picture generating language |
| MPL-1 | 1970 | ⊕ Matrix | ⊕ Japan | Matrix programming language | |
| MRDS | 1970 | ||||
| MS | 1970 | ⊕ United States | |||
| NASTRAN | 1970 | ↓ ↑ ⊕ Non-numerical Scientific | ⊕ United States | ||
| NCL | 1970 | ⊕ United States | |||
| NCL | 1970 | ⊕ United States | |||
| NEATER 2 | 1970 | ⊕ IBM PL/Is | ⊕ United States | ||
| Nevins | 1970 | ⊕ United States | |||
| NEWBASIC | 1970 | ||||
| NL/l | 1970 | ⊕ Japan | |||
| NUCLEOL | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Tree | ⊕ United States | Tree-based list processing language |
| OGL | 1970 | ⊕ Japan | |||
| OMNITAB II | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Columnar sheets | ⊕ United States | Statistical analysis system |
| OPS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ RETE and production | ⊕ United States | Official Production System |
| OSCAR | 1970 | ⊕ Other Conversational | Oregon State Conversational Aid to Research | ||
| OSIRIS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | |
| OSL/2 | 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Other algorithmic | ⊕ United States | Systems language |
| OSS | 1970 | ⊕ United States | |||
| PAL | 1970 | ⊕ Symbolic | ⊕ Netherlands | ||
| Pascal | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ Switzerland | Wirth's development of the Algol-W proposal |
| PDIL | 1970 | ⊕ Protocol | ⊕ France | ||
| PDL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Picture Description Language |
| PDP FLEX | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ List | ⊕ United States | |
| PEARL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Assemblers | ⊕ Germany | Real-Time Language |
| Pick BASIC | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Street basics | ⊕ United States | |
| Picture Language | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ Australia | Language for describing line drawings |
| PILE | 1970 | ⊕ Internal Translators | ⊕ United States | ||
| PL | 1970 | ⊕ Japan | |||
| PL/C | 1970 | ⊕ Other PL/Is | ⊕ United States | Programming Language/Cornell | |
| PL516 | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ PL-360s | ⊕ United Kingdom | |
| Plaine and Easie Code | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Synthesis | ⊕ United States | Music programming language |
| PLEXPACK | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Gestalt programming | ⊕ United States | |
| PLOTRAN | 1970 | ⊕ Japan | |||
| POGO | 1970 | ⊕ United States | |||
| Poly | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Geometrical language |
| Process Control Algol | 1970 | ⊕ Hungary | Algol 60 extended for process control | ||
| PROTOL | 1970 | ⊕ External systems control | ⊕ United Kingdom | Process control language | |
| Protosynthex II | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Ad hoc query languages | ⊕ United States | Evolution of Protosynthex |
| Protosynthex III | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Ad hoc query languages | ⊕ United States | Evolution of Protosynthex |
| PSL | 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Goal description | ⊕ United States | Problem Statement Language |
| PSP | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | Subsumption of several stats systems |
| PUSHUP | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Markovs | ⊕ United States | |
| QUILT | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ CAI languages | ⊕ United States | CAI language |
| Rakugo | 1970 | ||||
| RAMOS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ Australia | Rule-based graphcial analysis system |
| RAPID | 1970 | ⊕ Japan | |||
| REDUCE 2 | 1970 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ⊕ United States | Improved vesion of REDUCE with new format |
| Refal | 1970 | ⊕ Other lambda | ⊕ Russian Federation | Recursive functional algorithms | |
| REF-ARF | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Goal description | ⊕ United States | |
| RIDS-II | 1970 | ⊕ Japan | |||
| Ring Fortran | 1970 | ⊕ Ring | ⊕ United Kingdom | Ring-storage package for Fortran | |
| RLISP | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | Lisp without brackets |
| RMAG | 1970 | ⊕ Macros | ⊕ United States | Universal macro generator | |
| Rochester Ultimate Weapon | 1970 | ⊕ Individual | ⊕ United States | ||
| ROKDOC | 1970 | ⊕ Statistical | ⊕ United Kingdom | ||
| RTPL | 1970 | ⊕ United States | |||
| RUSSELL | 1970 | ⊕ Lazy Evaluation FPs | ⊕ United States | ||
| S/360 | 1970 | ⊕ Expression oriented | ⊕ United States | Continuous simulations language | |
| SAS | 1970 | ⊕ Symbolic assemblers | ⊕ Poland | Polish assembler | |
| SCOPE | 1970 | ⊕ United States | Interactive graphics language | ||
| SCRAP | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Other Algol 60s | ⊕ South Africa | |
| SCROLL | 1970 | ⊕ Cell-based | ⊕ United States | ||
| SELDAM | 1970 | ⊕ Japan | |||
| Sequential Pascal | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ United Kingdom | Simplified Pascal with monitors |
| SETL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Set | ⊕ United States | Set based programming language |
| SIAM | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ Germany | Simulation language |
| SIMSCRIPT II Plus | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Simulations language |
| SL/8 | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Other Algol 60s | ⊕ United States | System Language for PDP-8 |
| SOCOMP | 1970 | ⊕ Statistical | ⊕ United States | ||
| SOL/P350 | 1970 | ⊕ United Kingdom | |||
| SOLOPO | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Other Russian/Soviet | ⊕ Russian Federation | Russian space-computer language |
| SPG | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Macros | ⊕ United Kingdom | |
| SPL | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ True Algol58s | ⊕ United States | Space programming language |
| SPL | 1970 | ↓ ↑ ⊕ Multi-purpose | ⊕ Other PL/Is | ⊕ United States | PRIME Systems Programming Language |
| SPL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table software |
| SPL/MK IV | 1970 | ||||
| SPM | 1970 | ⊕ Japan | |||
| SSL | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Systems specification language | |
| SSP PL/I | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | IBM SSP 360 ported from Fortran |
| SSP/1130 | 1970 | ⊕ Statistical | ⊕ United States | ||
| SSP/360 | 1970 | ⊕ Statistical | ⊕ United States | ||
| STAGE2 | 1970 | ⊕ Macros | ⊕ United States | ||
| STAT SYSTEM/1130 | 1970 | ⊕ Statistical | ⊕ United States | ||
| STAT-D | 1970 | ⊕ Statistical | ⊕ United States | Honeywell distrubution stats package | |
| STAT-K | 1970 | ⊕ Statistical | ⊕ United States | Honeywell distrubution stats package | |
| STORM | 1970 | ⊕ Statistical | ⊕ United States | ||
| SUMX | 1970 | ⊕ Statistical | ⊕ United States | LRL stats package | |
| SuperBasic | 1970 | ⊕ Street basics | ⊕ United States | Tymeshare Basics | |
| SVDS | 1970 | ⊕ Hybrid | ⊕ United States | Hybrid space simulation language | |
| SWAP | 1970 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Macroassemblers | ⊕ United States | High level macro assembler |
| SYNPROC | 1970 | ⊕ Grammar and Syntax-oriented | ⊕ France | ||
| System/360 Decision Logic Translator | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table software |
| Tab70 | 1970 | ⊕ Decision tables | ⊕ United States | ||
| TAM | 1970 | ↓ ↑ ⊕ On-Line | ⊕ Multiline | ⊕ United States | 2-D input maths language |
| TDMS | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Flat DB | ⊕ United States | Time-Shared Data Management System |
| T-L6 | 1970 | ⊕ Japan | |||
| TLISP | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | Texas UCI LISP |
| TOL | 1970 | ⊕ Interface and windowing | ⊕ United States | Telemetry oriented language from Boeing | |
| TRACE III | 1970 | ⊕ Text summary/MIS | ⊕ United States | ||
| TRAIL | 1970 | ⊕ Decision tables | ⊕ United States | ||
| TRANS | 1970 | ↓ ↑ ⊕ Specialised Languages | ⊕ Activity scanning | ⊕ United States | |
| TSAR | 1970 | ↓ ↑ ⊕ Experimental and other | ⊕ Statistical | ⊕ United States | Statistical system for taped-stored data |
| VAULT | 1970 | ⊕ CAI languages | ⊕ Canada | ||
| VULCAN | 1970 | ↓ ↑ ⊕ String and List Processing | ⊕ Macros | ⊕ United States | String manipulation language |
| Watanabe | 1970 | ⊕ Definition languages | ⊕ Japan | ||
| XCOM | 1970 | ⊕ XPLs | ⊕ Australia | ||
| XEHM | 1970 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United Kingdom |