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