| 2CL | 1965 | ↓⊕Numerical Control | ↓⊕United Kingdom | Modified NEL NC machine |
| AAP1 | 1965 | | ↓⊕United States | |
| ABASIC | 1965 | ↓⊕Dartmouth Basics | ↓⊕France | Dartmouth BASIC dialect for Bull-GE |
| AED String Package | 1965 | ↓⊕Gestalt programming | ↓⊕United States | |
| AED-1 | 1965 | ↓⊕Gestalt programming | ↓⊕United States | Portable AED Compiler |
| AL | 1965 | ↓⊕Map/Dictionary | ↓⊕United States | Associative Language |
| ALICS | 1965 | ↓⊕Symbolic assemblers | ↓⊕United States | ICS assembler |
| ALPINE | 1965 | ↓⊕Other Conversational | ↓⊕United States | Conversational programming system for NORC |
| ALTRAN | 1965 | ↓⊕Fortran I-III Variants | ↓⊕United States | Translator for ALTAC |
| Anderson extensions | 1965 | ↓⊕Other US historic | ↓⊕United States | Parallel extensions set for PLs |
| ASKA | 1965 | ↓⊕Algebraic | ↓⊕Germany | Matrix finite element analysis language |
| ASP | 1965 | ↓⊕Map/Dictionary | ↓⊕United Kingdom | Associative Structures Package |
| Atlas Algol | 1965 | | ↓⊕United Kingdom | |
| Atlas Commercial Language | 1965 | ↓⊕COBOL coeval | ↓⊕United Kingdom | |
| ATOLL | 1965 | ↓⊕External systems testing | ↓⊕United States | NASA Test language |
| AUTODRAFT | 1965 | ↓⊕2d shape | ↓⊕United States | Drafting language |
| AUTOSURF | 1965 | ↓⊕Numerical Control | ↓⊕Italy | 3D CNC programming language |
| Basic JOVIAL | 1965 | ↓⊕Jovials | ↓⊕United States | Simplified subset of JOVIAL |
| BBN data management system | 1965 | ↓⊕Ad hoc query languages | ↓⊕United States | |
| BBN JOSS | 1965 | ↓⊕Generation of JOSS I | ↓⊕United States | JOSS rewritten at BBN |
| BEFLIX | 1965 | ↓⊕Animation | ↓⊕United States | Animation language |
| Bell Labs Stats Package | 1965 | | ↓⊕United States | |
| BESTOP | 1965 | ↓⊕Report Generators | ↓⊕United States | Statistically oriented report generator |
| Blechman MIDAS | 1965 | ↓⊕Digital | ↓⊕United States | NAA MIDAS |
| BLODI-B | 1965 | ↓⊕Expression oriented | ↓⊕United States | Block Diagram compiler |
| Bus-Pak II | 1965 | ↓⊕Hierarchical DB | ↓⊕United States | |
| ByteLisp | 1965 | ↓⊕Lazy Evaluation LISPs | ↓⊕United States | |
| CAI | 1965 | ↓⊕CAI languages | ↓⊕United States | Computer Assisted Instruction |
| CALPAK | 1965 | ↓⊕Algebraic | ↓⊕United States | CALTECH Algebra package |
| CALTRAN | 1965 | ↓⊕Algebraic | ↓⊕United States | CALTECH Algebra package |
| CDL | 1965 | ↓⊕Command systems | ↓⊕United States | Command Definition Language for ICES |
| CDL | 1965 | ↓⊕Digital | ↓⊕United States | Computer Design Language |
| CHIMP | 1965 | | | |
| CINTURN | 1965 | ↓⊕Numerical Control | ↓⊕United States | Cincinatti APT |
| Clowes | 1965 | ↓⊕Syntactical descriptions | ↓⊕United Kingdom | Picture grammar |
| COBOL Edition 1965 | 1965 | ↓⊕COBOL-61 | ↓⊕United States | DoD mandated COBOL |
| COGENT | 1965 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | COmpiler and GENeralized Translator |
| COGO T-Square | 1965 | ↓⊕Civil | ↓⊕United States | |
| COLINGO | 1965 | ↓⊕Flat DB | ↓⊕United States | |
| COMMEND | 1965 | ↓⊕Civil | ↓⊕United States | |
| COMPAX | 1965 | ↓⊕Cell-based | ↓⊕India | Visual language for the BUBBLE-TALK system |
| COMPUTEST II | 1965 | ↓⊕CAI languages | ↓⊕United States | CAI and interviewing language |
| CORTRAN | 1965 | ↓⊕FORTRAN IV standard | ↓⊕United States | Cornell FORTRAN |
| CPL1 | 1965 | ↓⊕CPL, BCPL and B | ↓⊕United Kingdom | Implemented subset of CPL |
| CPS | 1965 | ↓⊕Other Conversational | ↓⊕United States | Conversational Programming System |
| CSMP | 1965 | ↓⊕Expression oriented | ↓⊕United States | Continuous System Modeling Program |
| DACICC Code | 1965 | ↓⊕Autocode Coeval | ↓⊕Romania | Code for the DACICC computers |
| Data-beads | 1965 | ↓⊕3d shape | ↓⊕United States | 3d CAD storage and representation system |
| DECAL | 1965 | ↓⊕CAI languages | ↓⊕United States | Digital CAI language |
| DEMON | 1965 | ↓⊕Differential Equations | ↓⊕Australia | Program generator |
| DETAB/66 | 1965 | ↓⊕Decision tables | ↓⊕United States | Revised version of DETAB |
| DETAP | 1965 | ↓⊕Decision tables | ↓⊕United States | Single paragraph COBOL writer |
| Dictionary APL | 1965 | ↓⊕Array | ↓⊕United States | nickname for Sharp APL |
| DML | 1965 | ↓⊕COBOL coeval | ↓⊕United States | Honeywell Data Management Language |
| DSL/90 | 1965 | ↓⊕Digital | ↓⊕United States | Computer simulation language |
| DYSTAL | 1965 | ↓⊕List | ↓⊕United States | Array-based list-processing for Fortran |
| ECAP | 1965 | ↓⊕Differential Equations | ↓⊕United States | Electronic Circuit Analysis Program |
| EGTRAN | 1965 | ↓⊕Fortran I-III Variants | ↓⊕United Kingdom | |
| EULER | 1965 | ↓⊕Pascals | ↓⊕United States | Wirth Algol |
| EXTRACT | 1965 | ↓⊕Ad hoc query languages | ↓⊕United States | Querying language |
| FLAP | 1965 | | ↓⊕United States | |
| FLAP | 1965 | ↓⊕Symbolic | ↓⊕United States | |
| FORTRAN II-D | 1965 | ↓⊕Fortran I-III Variants | ↓⊕United States | |
| FRAN | 1965 | ↓⊕Civil | ↓⊕United States | |
| GIM | 1965 | | ↓⊕United States | Multi-dimensional data language |
| Gorn language-naming language | 1965 | ↓⊕Language-oriented | ↓⊕United States | Lanugage for naming languages, to permit multilanguage compilation |
| GPM | 1965 | ↓⊕Macros | ↓⊕United Kingdom | General Purpose Macro-generator |
| GPSS III | 1965 | ↓⊕Event scheduling | ↓⊕United States | General Purpose Systems Simulator |
| GRAD Assistant | 1965 | ↓⊕Algebraic | ↓⊕United States | A LISP program to do algebraic manipulation |
| GRIN | 1965 | ↓⊕Flowcharts | ↓⊕United States | GRaphical INteraction language |
| HAYNAM Algol extensions | 1965 | ↓⊕True ALGOL60s | ↓⊕United States | |
| HSL | 1965 | | ↓⊕Germany | Hytran Simulations Language |
| ICETRAN | 1965 | ↓⊕Civil | ↓⊕United States | Translator between ICES and FORTRAN |
| IMP | 1965 | ↓⊕Other Conversational | ↓⊕United States | Lampson interactive debugging environment |
| IMP | 1965 | ↓⊕True ALGOL60s | ↓⊕United States | Extensible dialect of ALGOL-60 |
| IVSYS | 1965 | ↓⊕Array | ↓⊕United States | Early implementation of APL |
| JOSS II | 1965 | ↓⊕Generation of JOSS II | ↓⊕United States | Version 2 of JOSS |
| KAM | 1965 | ↓⊕Mechanical | ↓⊕United States | |
| KOP | 1965 | ↓⊕Decision tables | ↓⊕United States | Online system for batching jobs |
| Korsvold | 1965 | ↓⊕Symbolic | ↓⊕United States | Interactive non-numeric symbolic language |
| LEASE | 1965 | ↓⊕Civil | ↓⊕United States | Subsystem of ICES |
| Lincoln Reckoner | 1965 | ↓⊕Arithmetic | ↓⊕United States | Interactive maths at Lincoln Labs |
| LIPL | 1965 | ↓⊕List | ↓⊕United States | A linearized version of IPL-V |
| LOCS | 1965 | ↓⊕Activity scanning | ↓⊕United States | Simulation system for EDP |
| LRC | 1965 | ↓⊕List | ↓⊕United States | List processing |
| LSIX | 1965 | ↓⊕List | ↓⊕United States | |
| Macrosal | 1965 | ↓⊕2d shape | ↓⊕United States | Interactive graphics system |
| MAD Simulation | 1965 | ↓⊕Expression oriented | ↓⊕United States | |
| Mad/I | 1965 | ↓⊕Other IAL Coeval | ↓⊕United States | Advanced algorithmic language |
| MADBLOC | 1965 | ↓⊕Difference Equations | ↓⊕United States | |
| MADBUG | 1965 | | ↓⊕United States | CTSS Conversaional MAD |
| MADTRAN | 1965 | | | |
| MALGOL | 1965 | ↓⊕True ALGOL60s | ↓⊕Russian Federation | Algol 60 for the MINSK-2 |
| MATRAN | 1965 | ↓⊕Statistical | ↓⊕United States | Matrix-based statistical system |
| MAYBE | 1965 | | ↓⊕United States | |
| METAPLAN | 1965 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | Semantics-directed compiler |
| MIDAS III | 1965 | ↓⊕Expression oriented | ↓⊕United States | Digital simulation language |
| MORPHISM | 1965 | ↓⊕List | ↓⊕France | Symbolic List Processing Language |
| MPL/I | 1965 | ↓⊕Other PL/Is | ↓⊕United States | Multiple Purpose Language |
| MUSIC 4BF | 1965 | ↓⊕Sound-Performance | ↓⊕United States | Musical composition language |
| MUSIC 4F ORPHEUS | 1965 | ↓⊕Sound-Performance | ↓⊕United States | Musical composition language |
| NAPSS | 1965 | ↓⊕Arithmetic | ↓⊕United States | Non-procedural language for solving mathematical problems |
| NICOL I | 1965 | ↓⊕Other PL/Is | ↓⊕United States | Small subset of PL/I language |
| NOMAD | 1965 | | ↓⊕United States | |
| NU ALGOL | 1965 | ↓⊕True ALGOL60s | ↓⊕Norway | Norwegian University Algol |
| NWL CAI Fortran | 1965 | | ↓⊕United States | |
| OKIDS-60 | 1965 | | ↓⊕Japan | |
| OPS-3 | 1965 | ↓⊕Process interaction | ↓⊕United States | On-line Process Synthesizer version 3 |
| PANON-1B | 1965 | ↓⊕Patterns | ↓⊕Italy | Pattern-directed symbol manipulation language |
| PAT | 1965 | | ↓⊕United States | |
| PC | 1965 | ↓⊕2d shape | ↓⊕United States | PIcture Compiler for RCA GOLD |
| PDQ FORTRAN | 1965 | ↓⊕Fortran I-III Variants | ↓⊕United States | Purdue FORTRAN compiler |
| PET | 1965 | ↓⊕Decision tables | ↓⊕United States | Decision table language |
| PET | 1965 | ↓⊕Decision tables | ↓⊕Canada | Decision table language |
| PL360 | 1965 | ↓⊕PL-360s | ↓⊕United States | Wirth's Algol 60-derived HLA for the 360 |
| PLAN | 1965 | ↓⊕Symbolic assemblers | ↓⊕United States | ICL Symbolic assembler |
| Plasyd | 1965 | ↓⊕PL-360s | ↓⊕United Kingdom | ICL systems language |
| PRIDE | 1965 | ↓⊕Other DPLs | ↓⊕United States | List and file processing language for Xanadu |
| PROJECT | 1965 | ↓⊕Planning and development | ↓⊕United States | Project management subsystem for ICES |
| PROMO | 1965 | ↓⊕Numerical Control | ↓⊕Italy | CNC Language |
| PUFFT | 1965 | ↓⊕Non Standard FIV | ↓⊕United States | Student's Fortan |
| QUICKTRAN | 1965 | ↓⊕Non Standard FIV | ↓⊕United States | Conversational FORTRAN |
| QUIKSCRIPT | 1965 | ↓⊕Internal Translators | ↓⊕United States | Extensions to GATE for simulation |
| QUIN | 1965 | ↓⊕External systems control | ↓⊕United States | Interactive system control language |
| RDF | 1965 | ↓⊕Ad hoc query languages | ↓⊕United States | Relational Data File |
| ROADS | 1965 | ↓⊕Civil | ↓⊕United States | Problem-solving package for ICES |
| RPG II | 1965 | ↓⊕Report Generators | ↓⊕United States | RPG with subroutines and extended IO |
| RUNOFF | 1965 | ↓⊕Layout and display | ↓⊕United States | Original roff language |
| RUSH | 1965 | ↓⊕Other PL/Is | ↓⊕United States | Interactive Dialect of PL/I |
| SAFARI | 1965 | ↓⊕Editing and processing | ↓⊕United States | |
| SAL | 1965 | ↓⊕Algebraic | ↓⊕United States | Simple Algebraic Language |
| SAP-2 | 1965 | ↓⊕Numerical Control | ↓⊕Estonia | NC language |
| SCALLOP | 1965 | ↓⊕Other US historic | ↓⊕United States | Systems language, CDC |
| SCORS | 1965 | ↓⊕Low-level Autocoders | ↓⊕United States | Autocoder for Stromberg-Carlson intelligent recorder |
| SELECT | 1965 | ↓⊕Ad hoc query languages | ↓⊕United States | Data retrieval systemfor IBM 401 |
| SELMA | 1965 | ↓⊕Matrix | ↓⊕United States | Matrix Algebra language |
| SEP | 1965 | ↓⊕Early Autocodes | ↓⊕United Kingdom | |
| Sequence Break DECAL | 1965 | ↓⊕Other Algol 60s | ↓⊕United States | BBN version of DEC simplified Algol |
| SHADOW V | 1965 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | |
| Sharp APL | 1965 | ↓⊕Array | ↓⊕Canada | IP Sharp |
| SIMON II | 1965 | ↓⊕Process interaction | ↓⊕United Kingdom | Algol-based simulation language |
| SIMSCRIPT I.5 | 1965 | ↓⊕Event scheduling | ↓⊕United States | Simulation package, produced 7090 assembly |
| SIMTRAN | 1965 | ↓⊕Expression oriented | ↓⊕United States | |
| SMART system | 1965 | | ↓⊕Japan | |
| SNAP | 1965 | ↓⊕Macros | ↓⊕United Kingdom | |
| SNOBOL3 | 1965 | ↓⊕Patterns | ↓⊕United States | SNOBOL with UDFs |
| SPSS | 1965 | ↓⊕Statistical | ↓⊕United States | Stats system |
| SPURT | 1965 | ↓⊕Symbolic assemblers | ↓⊕United States | Symbolic Programming Language for the UNIVAC Real Time system |
| STATPAC | 1965 | ↓⊕Statistical | ↓⊕United States | |
| STAT-PACK | 1965 | ↓⊕Statistical | ↓⊕United States | Goddard biostats package |
| STRIP | 1965 | ↓⊕Flowcharts | ↓⊕United States | |
| STROBES | 1965 | ↓⊕External systems testing | ↓⊕United States | |
| STRUDL | 1965 | ↓⊕Civil | ↓⊕United States | STRUctured Design Language |
| SYMBOLANG | 1965 | ↓⊕Symbolic | ↓⊕United States | Symbol manipulating FORTRAN |
| SYNTAXSYS | 1965 | ↓⊕Scanning and section control | ↓⊕United States | SEmantic acces to picture subsegments |
| T3 Fortran | 1965 | ↓⊕Fortran I-III Variants | ↓⊕United Kingdom | Titan Fortran III |
| TMG | 1965 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | Compiler writing language |
| TOCS | 1965 | ↓⊕Arithmetic | ↓⊕United States | TACT Online Computer System |
| TRANSIT | 1965 | ↓⊕Civil | ↓⊕United States | Problem-solving package for ICES |
| TREETRAN | 1965 | ↓⊕Tree | ↓⊕United States | |
| UL/1 | 1965 | ↓⊕Ad hoc query languages | ↓⊕United States | Early non-procedural query language |
| Vienna Definition Language | 1965 | ↓⊕Definition languages | ↓⊕Germany | Formal language description language |