| AAIMS | 1979 | ↓⊕Array | ↓⊕United States | Array-based querying system |
| ABEL | 1979 | ↓⊕OO C family | ↓⊕Norway | OO Language with specification semantics |
| Abstracto | 1979 | ↓⊕Netherlands | Algorithm description language | |
| Abstracto 84 | 1979 | ↓⊕Netherlands | ||
| ACL | 1979 | ↓⊕United States | Application controller language | |
| ACSL | 1979 | ↓⊕United States | Advanced Continuous Simulation Language | |
| Actus | 1979 | ↓⊕United States | ||
| Ada | 1979 | ↓⊕United States | US DoD general purpose language | |
| Ada-O | 1979 | ↓⊕Germany | Ada subset used for compiler bootstrapping | |
| ADM | 1979 | |||
| ALGOL 68-RT | 1979 | ↓⊕True ALGOL68s | ↓⊕United Kingdom | Parallel ALGOL 68-R |
| ALICE | 1979 | ↓⊕Netherlands | ALeph Intermediate CodE | |
| APLOMB | 1979 | ↓⊕Array | ↓⊕Italy | Structural extensions to APL |
| APLSF | 1979 | ↓⊕Array | ↓⊕United States | DEC APL with shared system functions and system variables |
| ASBAL | 1979 | ↓⊕Stack | ↓⊕United States | Stack-based language derived from CLU |
| ASTRA | 1979 | |||
| Astral | 1979 | ↓⊕United States | Database language | |
| AT370 | 1979 | ↓⊕United States | AT extensions to APL/360 | |
| A-TABLE Lisp | 1979 | ↓⊕Lazy Evaluation LISPs | ||
| ATLAS | 1979 | ↓⊕2d shape | ↓⊕Japan | Visual querying system for geographical information systems |
| ATOL | 1979 | ↓⊕United Kingdom | ||
| AWK | 1979 | ↓⊕United States | String processing language | |
| BASEX | 1979 | ↓⊕United States | Real-time BASIC dialect | |
| BASIL | 1979 | ↓⊕United States | HLL for Logic machine | |
| BEST1 | 1979 | ↓⊕Report Generators | ↓⊕United States | BESTOP outputting PL/I |
| BlooP | 1979 | ↓⊕United States | ||
| BNA | 1979 | ↓⊕Germany | ||
| Bristle Blocks | 1979 | |||
| CAMAC | 1979 | ↓⊕United States | ||
| CCNPascal | 1979 | ↓⊕Pascals | ↓⊕United States | Concurrent pascal dialect |
| CGGL | 1979 | ↓⊕United States | ||
| CIL | 1979 | ↓⊕United States | ||
| COSY | 1979 | ↓⊕Graph | ↓⊕United Kingdom | |
| COSY | 1979 | |||
| Cray Fortran | 1979 | ↓⊕United States | Array processing FORTRAN for the Cray | |
| CSL | 1979 | |||
| CSSA | 1979 | ↓⊕Germany | Application language for INCAS | |
| CYBER-LISP | 1979 | ↓⊕Lazy Evaluation LISPs | ||
| DAPLEX | 1979 | ↓⊕United States | Data language | |
| DDA | 1979 | |||
| DMATRAN | 1979 | |||
| DOC | 1979 | ↓⊕United States | Tex processing and formatting language | |
| DPL | 1979 | ↓⊕C family | ↓⊕United States | mmp Parallel Language |
| Edinburgh LCF | 1979 | ↓⊕United Kingdom | ||
| EFL | 1979 | ↓⊕United States | Extended FORTRAN Language | |
| ELLA | 1979 | ↓⊕United Kingdom | ||
| EQL | 1979 | ↓⊕Japan | ||
| Etude | 1979 | ↓⊕Sound-Synthesis | ↓⊕United States | Music programming language |
| FGL | 1979 | ↓⊕United States | Function Graph Language. | |
| FGL | 1979 | ↓⊕United States | Flow Graph Lisp | |
| FlooP | 1979 | ↓⊕United States | Toy imperative language | |
| FOCAL | 1979 | ↓⊕United States | Forty-One CAlculator Language | |
| FOCUS | 1979 | ↓⊕Hierarchical DB | ↓⊕United States | Hierarchical database language |
| FORTH 79 | 1979 | ↓⊕United States | ||
| FSCAN | 1979 | |||
| GADS | 1979 | ↓⊕2d shape | ↓⊕United States | Geographical query language |
| GC | 1979 | ↓⊕United States | ||
| GDDL | 1979 | ↓⊕2d shape | ↓⊕Japan | Geographical data description language |
| GEO-QUEL | 1979 | ↓⊕2d shape | ↓⊕United States | Geographical extensions to QUEL |
| Goulet and Donaghey Information Language | 1979 | |||
| GRAM | 1979 | ↓⊕Denmark | ||
| HARVEST | 1979 | |||
| Herbison-Evans Movement Language | 1979 | |||
| HYPOL | 1979 | ↓⊕Labelled Matrix | ↓⊕India | Integrated DB language |
| IC-Prolog | 1979 | ↓⊕Horn clause | ↓⊕United Kingdom | |
| IGL | 1979 | ↓⊕2d shape | ↓⊕Japan | Geographical query language |
| ILIAD | 1979 | ↓⊕United States | ||
| INTERCOL | 1979 | ↓⊕United States | module interconnection language | |
| IPS | 1979 | |||
| IQ | 1979 | |||
| ISPS | 1979 | ↓⊕Digital | ↓⊕United States | Operational hardware specification language |
| KATE | 1979 | |||
| KELUS | 1979 | ↓⊕Poland | ||
| LAS | 1979 | ↓⊕Algebraic | Algebra system | |
| LAX2 | 1979 | |||
| Leitz TAS | 1979 | |||
| LGN | 1979 | |||
| LIL | 1979 | ↓⊕United States | ||
| LIMP | 1979 | ↓⊕United Kingdom | Language for Implementing Messages and Protocols | |
| LIMPET | 1979 | ↓⊕United Kingdom | Subset of LIMP | |
| LR | 1979 | |||
| MACRO | 1979 | ↓⊕United States | ||
| MAP | 1979 | ↓⊕United States | Macro Preoprocessor for Pascal | |
| MDL | 1979 | Machine Definition Language | ||
| MICRO-BALM | 1979 | |||
| MICRODARE | 1979 | ↓⊕United States | ||
| MIIS | 1979 | ↓⊕United States | Dialect of Mumps | |
| MINITAB II | 1979 | ↓⊕Columnar sheets | ↓⊕United States | Interactive statistical programming |
| MMSFORTH | 1979 | |||
| MODEL II | 1979 | ↓⊕Modelling | ↓⊕United States | Evolution of Model |
| MUSTRAN 4 | 1979 | ↓⊕United States | ||
| NETL | 1979 | ↓⊕Frame languages | ↓⊕United States | |
| NIL | 1979 | ↓⊕United States | New implementation of Lisp | |
| NQUEL | 1979 | ↓⊕Switzerland | ||
| OBJT | 1979 | ↓⊕United States | ||
| Ollongren | 1979 | |||
| OPS3 | 1979 | ↓⊕RETE and production | ↓⊕United States | Official Production System version 3 |
| OPS4 | 1979 | ↓⊕RETE and production | ↓⊕United States | Official Production System version 4 |
| OPS5 | 1979 | ↓⊕RETE and production | ↓⊕United States | Official Production System version 5 |
| PAL | 1979 | ↓⊕Japan | ||
| Parlance | 1979 | |||
| Pascal Plus | 1979 | ↓⊕Pascals | ↓⊕Ireland | |
| PASCAL/GRAPH | 1979 | ↓⊕Austria | ||
| PCL | 1979 | A Process Oriented Job Control Language | ||
| PHI | 1979 | ↓⊕Frame languages | ↓⊕United States | KBS |
| PILE | 1979 | |||
| PLITS | 1979 | |||
| PLY | 1979 | ↓⊕United States | ||
| PLZ | 1979 | ↓⊕United States | ||
| POL | 1979 | ↓⊕Italy | Mathematical programming language | |
| polyFORTH | 1979 | |||
| Port | 1979 | |||
| PRESENT | 1979 | |||
| PSL | 1979 | ↓⊕Lazy Evaluation LISPs | ↓⊕United States | Portable Lisp |
| Q-GERT | 1979 | ↓⊕2d shape | ↓⊕United States | Graphical simulation system |
| QLOG | 1979 | |||
| QUEST | 1979 | ↓⊕Other DPLs | ↓⊕United States | Hybrid query language |
| Qwiktran | 1979 | |||
| RDL | 1979 | ↓⊕United States | Requirements and Development Language | |
| REBEL/BASIC | 1979 | |||
| RED1 | 1979 | ↓⊕United States | ||
| REXX | 1979 | ↓⊕United Kingdom | ||
| RIDL | 1979 | |||
| Rigel | 1979 | ↓⊕United States | ||
| Rosetta SMALLTALK | 1979 | |||
| RS Algol | 1979 | ↓⊕True ALGOL68s | ↓⊕United Kingdom | |
| S-Algol | 1979 | ↓⊕True ALGOL60s | ↓⊕United Kingdom | St Andrew's Algol |
| Sassa Macro Processor | 1979 | ↓⊕Japan | Algol-style macro generator | |
| SCAN | 1979 | ↓⊕United States | ||
| SIML/I | 1979 | ↓⊕United States | System simulation language | |
| SIMPL-D | 1979 | ↓⊕United States | SIMPL with data abstraction extensions | |
| Simple Euclid | 1979 | ↓⊕United States | simpiflication of Euclid | |
| SIS | 1979 | ↓⊕Denmark | Semantics Implementation System | |
| SMACK | 1979 | ↓⊕Macroassemblers | ↓⊕United States | Macro package for MIL |
| SMALL | 1979 | |||
| SNePS | 1979 | ↓⊕Frame languages | ↓⊕United States | |
| SOL | 1979 | |||
| Spacemaker | 1979 | ↓⊕Slovenia | ||
| STAMPS | 1979 | ↓⊕Japan | ||
| Standard Lisp | 1979 | ↓⊕Lazy Evaluation LISPs | ↓⊕United States | |
| STAR | 1979 | ↓⊕Japan | ||
| STEP | 1979 | ↓⊕Russian Federation | ||
| SUGAR | 1979 | |||
| SUILVEN | 1979 | |||
| SUPERMAC | 1979 | ↓⊕United Kingdom | Embeddable macroprocessor | |
| SYSLISP | 1979 | ↓⊕Lazy Evaluation LISPs | ↓⊕United States | |
| TAL | 1979 | ↓⊕United States | Hazeltine CAI language | |
| TAL | 1979 | ↓⊕United States | Tandem systems language | |
| TAU | 1979 | ↓⊕United States | Compiler for T | |
| TBL | 1979 | ↓⊕United States | TAble description language | |
| TC | 1979 | ↓⊕United States | T-Compiler | |
| Thalmann | 1979 | Medical database language | ||
| Theseus | 1979 | ↓⊕United States | ||
| ThingLab | 1979 | ↓⊕United States | ||
| Toronto Euclid | 1979 | ↓⊕Canada | ||
| TRIP | 1979 | |||
| U-Code | 1979 | ↓⊕United States | Universal P-Code | |
| UCS | 1979 | ↓⊕United States | Universal Compiler System | |
| UNIT Package | 1979 | ↓⊕Frame languages | ↓⊕United States | |
| Utopia 84 | 1979 | ↓⊕United States | ||
| V | 1979 | ↓⊕United States | Graphic language | |
| VAL | 1979 | ↓⊕United States | Value-oriented Algorithmic Language | |
| VORELLE | 1979 | ↓⊕Germany | Decision table generator | |
| Wyoming structured APL | 1979 | ↓⊕Array | ↓⊕United States | APL with Dijkstra's structures |
| YALLL | 1979 | ↓⊕United States | High level assembly | |
| ZCODE | 1979 | |||
| ZetaLisp | 1979 | ↓⊕Lazy Evaluation LISPs | ↓⊕United States | |
| ZOPL | 1979 | ↓⊕Pascals | ↓⊕United States | Systems language for GEAC library systems |