| ADAM | 1964 | ↓⊕Ad hoc query languages | ↓⊕United States | Data Management System for IBM 7030 |
| AED-0 | 1964 | ↓⊕Gestalt programming | ↓⊕United States | Enhanced AED for graphics |
| AED-JR | 1964 | ↓⊕Gestalt programming | ↓⊕United States | Table-oriented version of AED |
| AEE-1 | 1964 | ↓⊕2G Autocodes | ↓⊕Czech Republic | Czech autocode |
| A-language | 1964 | ↓⊕Strict evaluation LISPs | ↓⊕United States | An early Algol-like surface syntax for Lisp |
| ALAS | 1964 | ↓⊕Difference Equations | ↓⊕United States | Continuous simulation language |
| ALGAN | 1964 | ↓⊕Algebraic | ↓⊕Germany | An extension of FORTRAN to solve sets of linear equations |
| ALGEK | 1964 | ↓⊕COBOL coeval | ↓⊕Russian Federation | Russian ALGOL/COBOL hybrid |
| ALGOL X | 1964 | ↓⊕True ALGOL60s | ↓⊕Germany | Algol 60 revision proposal |
| ALGOLIP | 1964 | | ↓⊕Japan | |
| ALTEXT | 1964 | ↓⊕Editing and processing | ↓⊕United States | Text processing |
| AMBIT | 1964 | ↓⊕Algebraic | ↓⊕United States | Algebraic manipulation |
| AP1 | 1964 | ↓⊕Symbolic assemblers | | Rice assembler |
| APB | 1964 | ↓⊕W European algorithmic systems | ↓⊕France | French autocoder |
| Atlas Autocode | 1964 | ↓⊕Early Autocodes | ↓⊕United Kingdom | Algol-like high-level Autocode |
| AXLE | 1964 | ↓⊕Substrings | ↓⊕United States | Table-based string processing language |
| Basic FORTRAN | 1964 | ↓⊕FORTRAN IV standard | ↓⊕United States | |
| BUGSYS | 1964 | ↓⊕Animation | ↓⊕United States | Pattern based animation language |
| CALCULAID | 1964 | ↓⊕Algebraic | ↓⊕United States | |
| CAPS | 1964 | ↓⊕Process interaction | ↓⊕United Kingdom | Precursor of CSL |
| CINAP | 1964 | ↓⊕Numerical Control | | |
| CLP | 1964 | ↓⊕List | ↓⊕United States | Cornell List Processor |
| COBLOC | 1964 | ↓⊕Difference Equations | ↓⊕United States | Simulations program |
| COGO-90 | 1964 | ↓⊕2D Spreadsheets | ↓⊕United States | |
| COMPUTEST | 1964 | ↓⊕CAI languages | ↓⊕United States | CAI and interviewing language |
| Constraint Algol | 1964 | ↓⊕True ALGOL60s | ↓⊕United States | Algol 60 with constraints |
| CORAL | 1964 | ↓⊕Ring | ↓⊕United States | Class Oriented Ring Associated Language |
| CORAL 64 | 1964 | ↓⊕Other UK historic languages | ↓⊕United Kingdom | Radar Establishment Systems Language |
| COWSEL | 1964 | ↓⊕Stack | ↓⊕United Kingdom | |
| CPL | 1964 | ↓⊕Other PL/Is | ↓⊕United States | Conversational Programming Language |
| Dartmouth BASIC | 1964 | ↓⊕Dartmouth Basics | ↓⊕United States | |
| DDL | 1964 | ↓⊕2d shape | ↓⊕United States | Drawing Descriptive Language |
| DETAB/65 | 1964 | ↓⊕Decision tables | ↓⊕United States | SHARE/SIGPLAN decision table language |
| EGDON | 1964 | ↓⊕Other UK historic languages | ↓⊕United Kingdom | |
| EK | 1964 | ↓⊕Symbolic assemblers | ↓⊕Czech Republic | EPOS symbolic assembler |
| EMA | 1964 | ↓⊕Early Autocodes | ↓⊕United Kingdom | Extended Mercury Autocode |
| ESP | 1964 | ↓⊕Activity scanning | ↓⊕United Kingdom | Elliot Bros simulator package |
| ETRAN | 1964 | ↓⊕Monte Carlo | ↓⊕United States | NIST Monte Carlo system |
| Euterpe | 1964 | ↓⊕Sound-Performance | | Musical description language |
| Extended ALGOL | 1964 | ↓⊕True ALGOL60s | ↓⊕United States | |
| FITZWATER Autocoder | 1964 | ↓⊕High-level Autocoders | ↓⊕United States | Autocoder with Fortran loops and subscripts |
| FORBLOC | 1964 | ↓⊕Difference Equations | ↓⊕United States | Simulations language |
| FORSIM | 1964 | ↓⊕Difference Equations | ↓⊕United States | Fotran dialect for simulation |
| Gargoyle | 1964 | ↓⊕W European algorithmic systems | ↓⊕Norway | |
| GENIUS | 1964 | ↓⊕W European algorithmic systems | ↓⊕Sweden | ALGOL at SAAB |
| Ghoul | 1964 | | ↓⊕United Kingdom | |
| GSL | 1964 | ↓⊕Decision tables | ↓⊕United States | Generation Strategy Language |
| Hart | 1964 | ↓⊕Symbolic | ↓⊕United States | Early symbolic analysis language written in Lisp |
| HOI | 1964 | | ↓⊕Germany | HYTRAN Operations Interpreter |
| HYBLOC | 1964 | ↓⊕Expression oriented | ↓⊕United States | Hybrid BLOC language |
| HYPLOC | 1964 | ↓⊕Expression oriented | ↓⊕United States | Simulations language |
| IBSYS | 1964 | ↓⊕W European algorithmic systems | | Idealised algorithmic language |
| IDS | 1964 | ↓⊕Hierarchical DB | ↓⊕United States | Integrated Data Store |
| IFIP ALGOL | 1964 | ↓⊕True ALGOL60s | ↓⊕International | |
| Illinois ALCOR | 1964 | | | |
| INFOL | 1964 | ↓⊕Ad hoc query languages | ↓⊕United States | Querying language |
| IPL-VC | 1964 | ↓⊕List | ↓⊕United States | |
| J-S | 1964 | ↓⊕Jovials | ↓⊕United States | |
| K AUTOCODE | 1964 | ↓⊕Early Autocodes | ↓⊕United Kingdom | ADvance autocode for KDF9 |
| Klerer-May System | 1964 | ↓⊕Algebraic | | |
| Language for Class Description | 1964 | ↓⊕OO C family | ↓⊕United States | |
| Language for computer description | 1964 | | ↓⊕Czech Republic | Hardware based description language |
| LISP II | 1964 | ↓⊕Strict evaluation LISPs | | |
| LOGIK | 1964 | ↓⊕Digital | | |
| LUCID | 1964 | ↓⊕Ad hoc query languages | ↓⊕United States | Data query language |
| LYaPAS | 1964 | ↓⊕Pure APLs | ↓⊕Russian Federation | Symbolic extensions to APL |
| MADS | 1964 | ↓⊕2d shape | ↓⊕United States | |
| Marchuk and Ershov system | 1964 | ↓⊕Arithmetic | ↓⊕Russian Federation | |
| MARK II | 1964 | ↓⊕Ad hoc query languages | ↓⊕United States | |
| MATHLAB | 1964 | ↓⊕Arithmetic | ↓⊕United States | Interactive maths language |
| McClure simulation language | 1964 | ↓⊕Digital | ↓⊕United States | TI digtal language |
| Mercury Assembler | 1964 | ↓⊕Symbolic assemblers | ↓⊕United Kingdom | |
| META 4 | 1964 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | |
| META III | 1964 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | |
| METACOBOL | 1964 | ↓⊕COBOL-60 | ↓⊕United States | ADR Cobol 60 |
| Metcalfe syntax language | 1964 | ↓⊕Grammar and Syntax-oriented | ↓⊕United States | |
| METEOR | 1964 | ↓⊕List | ↓⊕United States | COMIT with LISP features |
| Metropolitan Honeywell Compiler | 1964 | ↓⊕COBOL coeval | ↓⊕United States | |
| Metropolitan Honeywell Compromise Compiler | 1964 | ↓⊕COBOL coeval | ↓⊕United States | |
| MIDAS II | 1964 | ↓⊕Expression oriented | ↓⊕United States | Digital simulation language |
| MILITRAN | 1964 | ↓⊕Event scheduling | ↓⊕United States | Military simulation language |
| MIMIC | 1964 | ↓⊕Expression oriented | ↓⊕United States | Continuous simulations language |
| MPPL | 1964 | ↓⊕IBM PL/Is | ↓⊕United States | Interim name for PL/I |
| MUSIC 4B | 1964 | ↓⊕Sound-Performance | ↓⊕United States | Musical composition language |
| Named Storage | 1964 | ↓⊕Formulaic | ↓⊕United States | |
| Namer | 1964 | ↓⊕Ad hoc query languages | ↓⊕United States | Graphically oriented data retrieval language |
| NIP | 1964 | ↓⊕Low-level Autocoders | ↓⊕United States | |
| Nu-Speak | 1964 | ↓⊕List | ↓⊕United States | List-processing extensions to FAP or FORTRAN |
| OEDIPUS | 1964 | ↓⊕Algebraic | ↓⊕United States | Bell Labs interpretive algebraic system |
| OKIPAL | 1964 | | ↓⊕Japan | |
| OKISIP | 1964 | | ↓⊕Japan | OKI HLA |
| OPL-1 | 1964 | ↓⊕List | ↓⊕United States | Interactive SLIP environment |
| OPS-1 | 1964 | ↓⊕Activity scanning | ↓⊕United States | On-line Process Synthesizer |
| OPS-2 | 1964 | ↓⊕Activity scanning | ↓⊕United States | On-line Process Synthesizer version 3 |
| OPSIM | 1964 | ↓⊕Activity scanning | ↓⊕United States | |
| OPTRAN | 1964 | ↓⊕Activity scanning | ↓⊕United States | |
| PACTOLUS | 1964 | ↓⊕Digital | ↓⊕United States | Digital simulation language |
| PAX | 1964 | ↓⊕Cell-based | ↓⊕United States | Picture representation language for Cloud Chambers |
| PINT | 1964 | ↓⊕Low-level Autocoders | | |
| PL/I | 1964 | ↓⊕IBM PL/Is | ↓⊕United States | Programming Language One |
| PL/I Subset G | 1964 | ↓⊕IBM PL/Is | ↓⊕United States | General Purpose PL/I subset |
| PLITRAN | 1964 | ↓⊕IBM PL/Is | ↓⊕Australia | PL/I Preprocessor |
| PLUS | 1964 | ↓⊕Other US historic | ↓⊕United States | Programming Language for UNIVAC Systems |
| Process III | 1964 | ↓⊕Low-level Autocoders | ↓⊕United States | High level macro assembler |
| PRONTO | 1964 | ↓⊕Numerical Control | | |
| Proposal Writing Language | 1964 | ↓⊕Plan languages | ↓⊕United States | |
| QUIKTRAN | 1964 | ↓⊕Non Standard FIV | ↓⊕United States | FORTRAN-like, interactive with debugging facilities |
| Quilian semantic network | 1964 | ↓⊕Frame languages | ↓⊕United States | Original frames system |
| Raichl business algebra | 1964 | | ↓⊕Czech Republic | NPL for files |
| SAL | 1964 | ↓⊕2d shape | ↓⊕United States | Display primitives system for PDP-6 |
| SAM III | 1964 | ↓⊕Arithmetic | | Semi-Automated Mathematics |
| SAM IV | 1964 | ↓⊕Arithmetic | | Semi-Automated Mathematics |
| Schoonschip | 1964 | ↓⊕Algebraic | ↓⊕Switzerland | Symbolic maths |
| SECD | 1964 | ↓⊕Other lambda | ↓⊕United Kingdom | |
| SEPOL | 1964 | ↓⊕Civil | ↓⊕United States | Settlement POL |
| SERA | 1964 | ↓⊕Intermediate languages and VMs | ↓⊕Netherlands | Zebra VM language |
| SIOUX | 1964 | ↓⊕Expression oriented | ↓⊕Italy | Continuous Simulation Language |
| SMART | 1964 | ↓⊕Other DPLs | ↓⊕United States | Information retrieval language |
| SNOBOL2 | 1964 | ↓⊕Patterns | ↓⊕United States | Interim version of SNOBOL |
| SOL | 1964 | ↓⊕Process interaction | ↓⊕United States | Simulation Oriented Language |
| Solve | 1964 | | ↓⊕United States | |
| STL Online Computer System | 1964 | ↓⊕Algebraic | ↓⊕United States | Improved version of Tanoga Park CFS |
| STRESS | 1964 | ↓⊕Civil | ↓⊕United States | STRuctual Engineering Systems Solver |
| STRIP-2 | 1964 | ↓⊕Scanning and section control | ↓⊕United States | Version 2 of NBS scanning language |
| STUDENT | 1964 | ↓⊕Ad hoc query languages | ↓⊕United States | |
| SYMPAC | 1964 | ↓⊕Numerical Control | ↓⊕United States | |
| SYNAGOL | 1964 | | ↓⊕United States | Extensible Algol-60 |
| TA-1 | 1964 | ↓⊕Other Russian/Soviet | ↓⊕Russian Federation | |
| THAT | 1964 | ↓⊕Individual | ↓⊕United Kingdom | British simulation language |
| TR4 | 1964 | ↓⊕Definition languages | ↓⊕Germany | Extensible compiler generator system for the Telefunken TR4 Computer |
| TRAC T64 | 1964 | ↓⊕Macros | ↓⊕United States | Standard TRAC |
| TREC | 1964 | ↓⊕External systems control | ↓⊕United Kingdom | Interactive control system for reactors |
| TREET | 1964 | ↓⊕List | ↓⊕United States | trinary tree variant of LISP |
| TRIVIAL | 1964 | | ↓⊕United States | |
| Uhr | 1964 | ↓⊕W European algorithmic systems | ↓⊕United States | Pseudo-natural English for programming system |
| UNISIM | 1964 | ↓⊕Digital | ↓⊕United States | Network simulation language |
| VALGOL II | 1964 | ↓⊕True ALGOL60s | ↓⊕United States | |
| VECOPS | 1964 | ↓⊕Activity scanning | ↓⊕United States | Vector extensions to OPS-3 |
| VPRPAK | 1964 | ↓⊕Arithmetic | ↓⊕United States | A set of subroutines to do variable precision and rational arithmetic |
| WALDO | 1964 | ↓⊕Numerical Control | ↓⊕United States | |
| Whetstone Algol | 1964 | ↓⊕True ALGOL60s | ↓⊕United Kingdom | |
| WISP | 1964 | ↓⊕Macroassemblers | ↓⊕United Kingdom | Macro-based list processing language |
| Wos QAS | 1964 | | ↓⊕United States | |
| XPOP | 1964 | ↓⊕Macroassemblers | ↓⊕United States | Extensible macro assembly |