| AIMDS | ⊕ 1977 | ⊕ United States | |||
| ALGOL-M | ⊕ 1977 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States | |
| ANS MUMPS | ⊕ 1977 | ⊕ United States | |||
| APT 77 | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Automatically Programmed Tools v4 | |
| ASPEN | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ United States | Compiler design language | |
| CGOL | ⊕ 1977 | ↓ ↑ ⊕ String and List Processing | ⊕ United States | MACLISP with ALGOL syntax | |
| COL | ⊕ 1977 | ⊕ United States | Communications Oriented Language | ||
| CROSSTABS | ⊕ 1977 | ↓ ↑ ⊕ Numerical Scientific | ⊕ United States | ||
| DIAL | ⊕ 1977 | ⊕ United States | |||
| DIGRAF | ⊕ 1977 | ⊕ United States | |||
| ESP³ | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Extended SNOBOL Picture Pattern Processor | |
| EXEC2 | ⊕ 1977 | ⊕ United States | |||
| FFP | ⊕ 1977 | ⊕ United States | Formal FP | ||
| Formula Pascal | ⊕ 1977 | ⊕ United States | |||
| FORTH 77 | ⊕ 1977 | ⊕ United States | |||
| FP | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Strict evaluation FPs | ⊕ United States | Functional Programming |
| FRL | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Frame languages | ⊕ United States | Frame Representation Language |
| GASP-PL/I | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Hybrid | ⊕ United States | GASP in PL/I |
| Gehani Pascal | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ United States | |
| Gist | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Definition languages | ⊕ United States | Specification language |
| GLIDE | ⊕ 1977 | ⊕ United States | |||
| GRIN | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | |
| IDL | ⊕ 1977 | ↓ ↑ ⊕ Business Data Processing | ⊕ United States | Interactive Data Language | |
| IDSQ | ⊕ 1977 | ⊕ United States | |||
| IPL | ⊕ 1977 | ⊕ United States | |||
| Ironman | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ United States | Penultimate Ada specification |
| JOCIT | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Jovial J3 intermediate code | |
| KL-ONE | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Frame languages | ⊕ United States | |
| KRL | ⊕ 1977 | ⊕ United States | Knowledge Representation Language | ||
| KRL-0 | ⊕ 1977 | ⊕ United States | Knowledge Representation Language | ||
| KRS-1 | ⊕ 1977 | ⊕ United States | Knowledge Representation Semantics | ||
| LITTLE | ⊕ 1977 | ⊕ United States | |||
| M4 | ⊕ 1977 | ⊕ United States | |||
| Macaulay | ⊕ 1977 | ⊕ United States | |||
| MAINSAIL | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ United States | Commercialisation of SAIL | |
| MATLAB | ⊕ 1977 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Arithmetic | ⊕ United States | MATrix LABoratory |
| M-Code | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Intermediate languages and VMs | ⊕ United States | |
| Mesa | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ United States | XPARC Algol dialect | |
| META | ⊕ 1977 | ⊕ United States | |||
| MIDL | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ CPL, BCPL and B | ⊕ United States | Systems implementation language |
| MSL | ⊕ 1977 | ⊕ United States | |||
| MultiLisp | ⊕ 1977 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | Parallel extension of Scheme |
| MUSTRAN III | ⊕ 1977 | ⊕ United States | Music Translator | ||
| NLINGOL | ⊕ 1977 | ⊕ United States | |||
| NSFTRAN | ⊕ 1977 | ↓ ↑ ⊕ Numerical Scientific | ⊕ United States | Structured FORTRAN | |
| OBJ0 | ⊕ 1977 | ⊕ United States | |||
| OWL | ⊕ 1977 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | KR language | |
| PAL | ⊕ 1977 | ⊕ United States | PDP Assembly Language | ||
| PICTURE | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Picture drawing language | |
| PLANS | ⊕ 1977 | ⊕ United States | |||
| PLIP | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | ||
| QL77 | ⊕ 1977 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | |
| QUEASY | ⊕ 1977 | ↓ ↑ ⊕ Business Data Processing | ⊕ Other DPLs | ⊕ United States | Querying system |
| RATSNO | ⊕ 1977 | ⊕ United States | Preprocessor for SNOBOL4 | ||
| SA | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ 3-D Visual Languages | ⊕ United States | Multi-modal universal language by Ross |
| SAM76 | ⊕ 1977 | ⊕ United States | |||
| SBA | ⊕ 1977 | ⊕ United States | System for business automation | ||
| Scriptu | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Sound-Synthesis | ⊕ United States | Music programming language |
| SDDL | ⊕ 1977 | ⊕ United States | |||
| SDL | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | Structural Design Language | |
| SFTRAN/360 | ⊕ 1977 | ⊕ United States | |||
| SFTRAN-10 | ⊕ 1977 | ⊕ United States | |||
| SIMPL-NT | ⊕ 1977 | ⊕ United States | Test typeless dialect of SIMPL | ||
| SIMPL-ST | ⊕ 1977 | ⊕ United States | Test typed dialect of SIMPL | ||
| SIMPL-XI | ⊕ 1977 | ↓ ↑ ⊕ Multi-purpose | ⊕ United States | Systems implementation language | |
| SKETCH | ⊕ 1977 | ⊕ United States | |||
| SKETCH | ⊕ 1977 | ⊕ United States | |||
| SPEAKEC | ⊕ 1977 | ↓ ↑ ⊕ On-Line | ⊕ Algebraic | ⊕ United States | |
| STOIC | ⊕ 1977 | ⊕ United States | |||
| T | ⊕ 1977 | ↓ ↑ ⊕ String and List Processing | ⊕ United States | dialect with static scope and procedural features | |
| TBL | ⊕ 1977 | ⊕ United States | Table Building Language | ||
| TELOS | ⊕ 1977 | ⊕ United States | |||
| TLC | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ 3-D Visual Languages | ⊕ United States | Visual systems implementation language |
| TLISP | ⊕ 1977 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| UNITS | ⊕ 1977 | ↓ ↑ ⊕ Experimental and other | ⊕ Frame languages | ⊕ United States | Frame language |
| utility-coder | ⊕ 1977 | ↓ ↑ ⊕ Business Data Processing | ⊕ Report Generators | ⊕ United States | |
| WIDES | ⊕ 1977 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Simulation language |
| XGEN | ⊕ 1977 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | Code generator generator | |
| XL | ⊕ 1977 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | Intermediate language for XGEN | |
| ZIBL | ⊕ 1977 | ⊕ United States |