| 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 |
| 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 |
| ALTEXT | ⊕ 1964 | ↓ ↑ ⊕ String and List Processing | ⊕ Editing and processing | ⊕ United States | Text processing |
| AMBIT | ⊕ 1964 | ↓ ↑ ⊕ String and List Processing | ⊕ Algebraic | ⊕ United States | Algebraic manipulation |
| 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 | ||
| 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 |
| 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 |
| ETRAN | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Monte Carlo | ⊕ United States | NIST Monte Carlo system |
| 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 | |
| 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 |
| HYBLOC | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Expression oriented | ⊕ United States | Hybrid BLOC language |
| HYPLOC | ⊕ 1964 | ⊕ Expression oriented | ⊕ United States | Simulations language | |
| IDS | ⊕ 1964 | ↓ ↑ ⊕ Business Data Processing | ⊕ Hierarchical DB | ⊕ United States | Integrated Data Store |
| 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 | ||
| Language for Class Description | ⊕ 1964 | ↓ ↑ ⊕ Experimental and other | ⊕ OO C family | ⊕ United States | |
| LUCID | ⊕ 1964 | ↓ ↑ ⊕ Business Data Processing | ⊕ Ad hoc query languages | ⊕ United States | Data query language |
| MADS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| SAL | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Display primitives system for PDP-6 |
| SEPOL | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Civil | ⊕ United States | Settlement POL |
| 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 | ||
| TRAC T64 | ⊕ 1964 | ↓ ↑ ⊕ String and List Processing | ⊕ Macros | ⊕ United States | Standard TRAC |
| 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 | ||
| Wos QAS | ⊕ 1964 | ⊕ United States | |||
| XPOP | ⊕ 1964 | ⊕ Macroassemblers | ⊕ United States | Extensible macro assembly |