| ABACUS 10 | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | Data General JOSS |
| ACTION | 1968 | ⊕ Numerical Control | ⊕ France | ||
| ADMINS | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Other DPLs | ⊕ United States | MIT Querying system |
| AID | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | PDP-10 Joss II |
| AL | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | The Artificial Language |
| ALGEK-U | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ COBOL coeval | ⊕ Russian Federation | Subset of Algek for Minsk 2 |
| ALGOL 68 | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL68s | ⊕ International | 3rd generation ALGOL |
| AltMode | 1968 | ⊕ United Kingdom | |||
| AMBIT/G | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Symbolic | ⊕ United States | Ambit symbolic package for graphs |
| AMPPL-I | 1968 | ⊕ Map/Dictionary | ⊕ United States | Associative array extensions to FORTRAN IV | |
| Anderson 1968 | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Multiline | ⊕ United States | Graphical input language |
| ANIMATOR | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ United States | ABimation language |
| ANSIR | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ External systems testing | ⊕ France | Language for patching and checking analog and hybrid computers |
| APL with graphic extensions | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Map/Dictionary | ⊕ United States | Associative graphics language |
| APPLE | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Array | ⊕ United States | Revision of APL for the Illiac IV. |
| Ariel | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Array | ⊕ United States | |
| AS-IST | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | |
| ATF | 1968 | ⊕ Symbolic | ⊕ France | ||
| ATLAS | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ External systems testing | ⊕ United States | Avionics test language |
| AUT-68 | 1968 | ⊕ Symbolic | ⊕ Netherlands | ||
| AUTRAN | 1968 | ⊕ External systems control | ⊕ United States | ||
| Base Language | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Single-assignment | ⊕ United States | |
| BASEL | 1968 | ⊕ Grammar and Syntax-oriented | ⊕ United States | BASE Language for an extensible language facility | |
| Baskin and Morse graphical CSMP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Graphical simulation system |
| BASYS | 1968 | ↓ ↑ ⊕ Multi-purpose | ⊕ Scientific Basics | ⊕ United Kingdom | Extended BASIC |
| Bernstein | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Multiline | ⊕ United States | Maths input language |
| BETAB-68 | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ Sweden | GENIUS ALGOL decision table extensions |
| BL/I | 1968 | ⊕ Japan | |||
| B-LINE | 1968 | ⊕ 2d shape | ⊕ United States | ||
| BLITZ | 1968 | ⊕ Ad hoc query languages | ⊕ United States | ||
| BMT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | Graphical extensions to GPSS |
| Brilliant | 1968 | ⊕ Markovs | ⊕ United Kingdom | ||
| BSS | 1968 | ⊕ Event scheduling | ⊕ United States | ||
| BSURF | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ United States | NC language |
| Bugliarello | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Hydraulic/hydrological | ⊕ United States | Hydrological POL system |
| BUILD | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Macros | ⊕ United States | |
| CADETRAN | 1968 | ↓ ↑ ⊕ On-Line | ⊕ United States | ||
| CAL | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | Course Author Language |
| Calgary ALGOL | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Canada | |
| CAMA | 1968 | ⊕ Arithmetic | ⊕ United States | Michigan interactive maths system | |
| CAMAL | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ⊕ United Kingdom | CAMbridge ALgebra system |
| Cameron chemical language | 1968 | ⊕ Chemical formula languages | ⊕ United Kingdom | Chemical engineering language | |
| CAML | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ United States | Animation language |
| CAMP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ United States | 2d Animation system |
| CAN | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | FOCAL dialect |
| CARDIAC | 1968 | ⊕ Symbolic assemblers | ⊕ United States | ||
| CARPS | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Ad hoc query languages | ⊕ United States | Word-problems language |
| Catalyst | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | |
| CHAMP | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Substrings | ⊕ United States | String-conscious algol 60 variant |
| CIDAS | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Interactive dialect of MIDAS |
| CINIC | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Street basics | ⊕ United States | DEC teaching subset of BASIC |
| City University Conversational Fortran | 1968 | ⊕ United Kingdom | |||
| CL6 | 1968 | ⊕ List | ⊕ United States | ||
| CLIC | 1968 | ⊕ United Kingdom | |||
| COBOL-68 | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ COBOL-68 | ⊕ United States | ANS COBOL ANS X3.23-1968 |
| COCOA | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Text analysis | ⊕ United Kingdom | Language for literary analysis |
| COMPAC | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Other US historic | ⊕ United States | UNIVAC Compiler |
| Compel | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Single-assignment | ⊕ United States | Single assignment language |
| COPI | 1968 | ⊕ CAI languages | ⊕ Germany | Computer Oriented Programmed Instruction | |
| Coursewriter III | 1968 | ⊕ CAI languages | ⊕ United States | ||
| CTL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ External systems testing | ⊕ United States | Testing language |
| Data Structures Language | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Other IAL Coeval | ⊕ United States | MAD dialect with extensions for lists and graphics |
| DATANAL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | |
| DBL | 1968 | ⊕ United States | |||
| DDL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Digital | ⊕ United States | Digital Design Language |
| DETRAN | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ United States | Decision table language |
| DIAMAG 2 | 1968 | ↓ ↑ ⊕ On-Line | ⊕ True ALGOL60s | ⊕ France | Time-sharing Algol 60 |
| Diamond | 1968 | ⊕ Markovs | ⊕ United Kingdom | ||
| DIFTRAN | 1968 | ↓ ↑ ⊕ Multi-purpose | ⊕ Non Standard FIV | ⊕ Israel | Hebrew character based programming language |
| DIM | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Reactive | ⊕ United States | Interactive visual language |
| DISPLAYTRAN | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Other visual query languages | ⊕ United States | |
| DITCH | 1968 | ⊕ CAI languages | ⊕ United States | ||
| DLT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table generator |
| DMS | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Report Generators | ⊕ United States | |
| DPL | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Generalised programming | ⊕ United States | Dataless Programming Language |
| DPL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | |
| DPL | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Hierarchical DB | ⊕ United States | Data Processing Language |
| DYL250 | 1968 | ⊕ Hierarchical DB | ⊕ United States | ||
| EASY ENGLISH | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Information retrieval language |
| EDIT | 1968 | ↓ ↑ ⊕ On-Line | ⊕ United States | ||
| ELF | 1968 | ⊕ Macros | ⊕ United States | ||
| EMERS | 1968 | ⊕ Japan | |||
| English | 1968 | ⊕ Other US historic | ⊕ United States | English as a programming language | |
| EOL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Experiment control and recording | ⊕ United States | Experimenter Oriented Language |
| EOL-2 | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Grammar and Syntax-oriented | ⊕ Poland | Expression Oriented Language |
| ESPOL | 1968 | ⊕ Other Algol 60s | ⊕ United States | Executive System Problem Oriented Language | |
| Eulalie | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ France | Conversational graphical programming system |
| Euphemie | 1968 | ⊕ Reactive | ⊕ France | Hybrid graphical structural programming language | |
| EXAPT 3 | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ Germany | NC languages capable of contouring |
| FFL | 1968 | ↓ ↑ ⊕ On-Line | ⊕ United States | ||
| FMILL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ United States | NC language |
| FOCAL | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United States | FOrmula CALculator. - JOSS family |
| FOIL | 1968 | ⊕ CAI languages | ⊕ United States | ||
| FORDESK IV | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Non Standard FIV | ⊕ Australia | Interactive FORTRAN IV |
| FORMAT-FORTRAN | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Non Standard FIV | ⊕ United States | |
| FRG | 1968 | ⊕ United States | |||
| Gaelic | 1968 | ⊕ External systems testing | ⊕ United States | ||
| GAMMA | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Algebraic | ⊕ Switzerland | CERN port of Culler-Fried System |
| GAMMA | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Activity scanning | ⊕ Norway | Evolution of SIMULA |
| GASP IIA | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Event scheduling | ⊕ United States | GASP II with augmented filing system |
| GEA | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Graph | ⊕ Italy | Graph Extended ALGOL |
| GECENT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ United States | NC language |
| General Purpose Graphic Language | 1968 | ⊕ 2d shape | ⊕ United States | ||
| GENSTAT | 1968 | ⊕ Statistical | ⊕ Australia | CSIRO stats package | |
| GIM II | 1968 | ⊕ United States | Multi-dimensional data language | ||
| GIN | 1968 | ⊕ Macroassemblers | ⊕ United Kingdom | ||
| GL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ 3-D Visual Languages | ⊕ United States | Language for 3d description |
| GLAF | 1968 | ⊕ Reactive | ⊕ United States | ||
| GMAP | 1968 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Macroassemblers | ⊕ France | |
| Gordon | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Individual | ⊕ United States | |
| GPSS-10 | 1968 | ⊕ Process interaction | ⊕ United States | GPSS for the PDP-10 | |
| GRAPPLE | 1968 | ⊕ Graph | ⊕ United States | ||
| GRASPE | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Graph | ⊕ United States | |
| GRASS | 1968 | ⊕ 2d shape | ⊕ United States | ||
| GRIN94 | 1968 | ⊕ United States | |||
| GSP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Plan languages | ⊕ United States | Space planning language |
| GSP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Fortran graphics subroutine package |
| GULP | 1968 | ⊕ Grammar and Syntax-oriented | ⊕ United Kingdom | ||
| G-WIZ | 1968 | ⊕ Macros | ⊕ United States | ||
| HELP | 1968 | ⊕ United States | |||
| Hydro | 1968 | ⊕ Hydraulic/hydrological | ⊕ United States | ||
| IAM | 1968 | ↓ ↑ ⊕ Non-numerical Scientific | ⊕ Algebraic | ⊕ United States | Interactive Algebraic Manipulation |
| IBAL | 1968 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Microprogramming and HLAs | ⊕ United States | ILLIAC HL Assembler |
| ICT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Cell-based | ⊕ United States | Satellite graphics language |
| INFORM | 1968 | ⊕ CAI languages | ⊕ United States | ||
| Inscan | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Grammar and Syntax-oriented | ⊕ United States | Syntax-directed language processor |
| INTRO-STAT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | |
| JEAN | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Generation of JOSS I | ⊕ United Kingdom | |
| KOBRA | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ Norway | NC language |
| Lagrol | 1968 | ⊕ 2d shape | ⊕ France | Graphics language | |
| LAM | 1968 | ⊕ Algebraic | ⊕ United States | ||
| LEAP | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Map/Dictionary | ⊕ United States | Language for the Expression of Associative Procedures |
| LISP A | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| LOGOL | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Ring | ⊕ Poland | String-manipulation language |
| LRLTRAN | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Non Standard FIV | ⊕ United States | Vector processing FORTRAN extension |
| MacAims | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ RDBMs | ⊕ United States | Set-based data retrieval language |
| MAD List Language | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ List | ⊕ United States | Extensions of MAD for list processing |
| MADCAP | 1968 | ||||
| MAO | 1968 | ⊕ Algebraic | ⊕ United States | Astronomical maths language | |
| MARK IV | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Hierarchical DB | ⊕ United States | |
| MARK V | 1968 | ⊕ United States | |||
| MATHPAC | 1968 | ⊕ Algebraic | ⊕ United States | ||
| MAZE | 1968 | ⊕ Japan | |||
| McG | 1968 | ⊕ Other lambda | ⊕ United States | ||
| MERMAID | 1968 | ⊕ Hybrid | ⊕ United States | ||
| META-SYMBOL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Macroassemblers | ⊕ United States | SDS Macroassembler |
| MINIAPT | 1968 | ⊕ Numerical Control | ⊕ Germany | Minicomputer APT | |
| Minority report Algol 68 | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ International | |
| MIX | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Symbolic assemblers | ⊕ United States | MIX Assembly Language |
| MLISP | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| MOMS | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Arithmetic | ⊕ United States | Interactive maths system at UMich |
| Morton and Stephens interactive | 1968 | ⊕ Other visual query languages | ⊕ United States | ||
| MRC Picture Language | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Cell-based | ⊕ United Kingdom | Language for analysis and manipulation of images |
| MSU STAT | 1968 | ⊕ Statistical | ⊕ United States | ||
| MULTICS PL/I | 1968 | ⊕ Multics PL/Is | ⊕ United States | Production PL/I compiler | |
| MULTIVARIATE | 1968 | ⊕ Statistical | ⊕ United States | ||
| NEATER | 1968 | ||||
| NELAPT | 1968 | ⊕ Numerical Control | ⊕ United Kingdom | CNC language | |
| NEXUS | 1968 | ⊕ Semantic descriptions | ⊕ United States | ||
| Nonpareil | 1968 | ⊕ Markovs | ⊕ United Kingdom | ||
| NPSTAT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | Stats package from MSU |
| NUMERISCRIPT | 1968 | ⊕ Numerical Control | ⊕ United States | ||
| OLDAS | 1968 | ⊕ Expression oriented | ⊕ United States | ||
| OPAK | 1968 | ↓ ↑ ⊕ On-Line | ⊕ Other Conversational | ⊕ United States | |
| OSL | 1968 | ⊕ Other algorithmic | ⊕ United States | Operating System Language | |
| PA2 | 1968 | ⊕ Statistical | ⊕ United States | Problem Analysis Language | |
| PAL | 1968 | ⊕ Other lambda | ⊕ United States | Pedagogic Algorithmic Language | |
| PAL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Plan languages | ⊕ United States | |
| PANON-2 | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Patterns | ⊕ Italy | Pattern-directed symbol manipulation language |
| Pascal-F | 1968 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ United States | |
| PCDP | 1968 | ⊕ Macroassemblers | ⊕ United States | ||
| PDEL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Difference Equations | ⊕ United States | Partial differential equation system implemented |
| Pearl | 1968 | ⊕ Markovs | ⊕ United Kingdom | ||
| PI | 1968 | ⊕ Macros | ⊕ United States | Princeton Interactive compiler-compiler | |
| PILOT | 1968 | ⊕ CAI languages | ⊕ United States | Computer aided instruction language | |
| PL/0 | 1968 | ⊕ Other PL/Is | ⊕ Australia | UNSW PL/I | |
| PL/A | 1968 | ⊕ Other PL/Is | ⊕ United States | Adaptation of PL/ACME | |
| PL/I-FORMAC | 1968 | ↓ ↑ ⊕ Non-numerical Scientific | ⊕ Formulaic | ⊕ United States | |
| PL/S | 1968 | ⊕ Other PL/Is | ⊕ United States | Programming Language/Systems | |
| PLACE | 1968 | ⊕ External systems testing | ⊕ United States | ||
| PLAGO | 1968 | ⊕ Other PL/Is | ⊕ United States | ||
| PLAN | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Plan languages | ⊕ United States | |
| POPPY | 1968 | ⊕ Stack | ⊕ United Kingdom | POP-2 for the PDP-11 | |
| PRECISE | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Columnar sheets | ⊕ United States | Precision version of Omnitab |
| PROTEUS | 1968 | ⊕ Other PL/Is | ⊕ United States | ||
| PROTRAN | 1968 | ⊕ External systems control | ⊕ United Kingdom | Process control language | |
| PSYCHOL | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Experiment control and recording | ⊕ United Kingdom | language for psychological experimentation |
| RC-Fortran | 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ FORTRAN IV standard | ⊕ Denmark | Fortran for the RC 4000 |
| REFORM | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Columnar sheets | ⊕ United States | |
| REL | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Grammar and Syntax-oriented | ⊕ United States | Rapidly Extensible Language |
| RND | 1968 | ⊕ Other Russian/Soviet | ⊕ Russian Federation | ||
| ROMANCE | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ United States | 1130 NC Language |
| RPG III | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Report Generators | ⊕ United States | |
| Ruby | 1968 | ⊕ Markovs | ⊕ United Kingdom | ||
| SABRE PL/I | 1968 | ⊕ Other PL/Is | ⊕ United States | PL/I dialect for use in the SABRE system | |
| SAIL | 1968 | ⊕ Map/Dictionary | ⊕ United States | Stanford Artificial Intelligence Language | |
| SAL | 1968 | ⊕ Algebraic | ⊕ United Kingdom | Simple Algebraic Language | |
| Scope FORMAC | 1968 | ⊕ United States | |||
| SEMIPAL | 1968 | ⊕ Symbolic | ⊕ Netherlands | ||
| SIGMA | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Macroassemblers | ⊕ Russian Federation | BESM Macroprocessing system |
| SL/I | 1968 | ⊕ Other PL/Is | ⊕ Canada | Toronto PL/I | |
| SMALL | 1968 | ⊕ United States | Timeshare language at UMass Amherst | ||
| SMIR | 1968 | ⊕ United Kingdom | |||
| SMP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Decision table language |
| SNAP | 1968 | ⊕ Individual | ⊕ United States | ||
| SNOBOL-A | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Patterns | ⊕ Russian Federation | SNOBOL with structures |
| SPARTA | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Line drawing program |
| SPEAL | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Differential Equations | ⊕ United States | USAF Electronic simulations language |
| SPECOL | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United Kingdom | Querying language |
| STAG | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Intermediate languages and VMs | ⊕ United States | Symbolic intermediate language for AUERBACH Inscan |
| STAP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Formulaic | ⊕ Netherlands | |
| STAPL | 1968 | ⊕ Other PL/Is | ⊕ United States | Expermintal PL/I | |
| Stark algorithm language | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Other algorithmic | ⊕ United States | Language for showing provable algorithms |
| STAT 3600 | 1968 | ⊕ Statistical | ⊕ United States | ||
| STDS | 1968 | ⊕ Set | ⊕ United States | Set based language | |
| Stockbrokers' Language | 1968 | ⊕ United Kingdom | |||
| STRUDL II | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Civil | ⊕ United States | STRUctured Design Language |
| Suntran | 1968 | ⊕ Decision tables | ⊕ United States | Sun Fortran Decision table language | |
| SYMAP | 1968 | ⊕ Numerical Control | ⊕ France | ||
| SYMFORM | 1968 | ⊕ United States | |||
| SYMP(B) | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ Germany | NC Language |
| TABGEN | 1968 | ↓ ↑ ⊕ Business Data Processing | ⊕ Decision tables | ⊕ Canada | Decision table language |
| TAG | 1968 | ⊕ Robotics | ⊕ United States | ||
| TCL | 1968 | ⊕ Other Conversational | ⊕ United States | Tymshare Conversational Language | |
| TELCOMP II | 1968 | ⊕ United States | |||
| TERMAC | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Matrix | ⊕ United States | Matrix language |
| Textbook Machine Language | 1968 | ↓ ↑ ⊕ Multi-purpose | ⊕ Symbolic assemblers | ⊕ United States | Paper symbolic assembler |
| TOTAL | 1968 | ⊕ RDBMs | ⊕ United States | Cincom's 4gl database language | |
| TPS | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Tree | ⊕ United States | Tree Pruning System |
| TRAMP | 1968 | ↓ ↑ ⊕ String and List Processing | ⊕ Map/Dictionary | ⊕ United States | Associative memory language |
| Triplex Algol 60 | 1968 | ⊕ True ALGOL60s | ⊕ Germany | ||
| TSAR | 1968 | ↓ ↑ ⊕ Experimental and other | ⊕ Statistical | ⊕ United States | |
| TUSTEP | 1968 | ⊕ Editing and processing | ⊕ Germany | ||
| USS STAT | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Statistical | ⊕ United States | United Steel Statistics |
| Woodbury | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Syntactical descriptions | ⊕ United States | Image description/manipulation language |
| WRITEACOURSE | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ CAI languages | ⊕ United States | |
| ZAP | 1968 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ United States | NC language |