| ABAL | ⊕ 1974 | ↓ ↑ ⊕ Non-numerical Scientific | ⊕ United States | Teaching language for Boolean algebra | |
| ADS | ⊕ 1974 | ⊕ United States | Automatic documentation language | ||
| Alphard | ⊕ 1974 | ↓ ↑ ⊕ Experimental and other | ⊕ Pascals | ⊕ United States | Pascal with data abstraction |
| APG | ⊕ 1974 | ⊕ United States | |||
| Argonne proving system | ⊕ 1974 | ⊕ United States | |||
| ARPL | ⊕ 1974 | ⊕ United States | |||
| ARTSPEAK | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | ||
| Augment | ⊕ 1974 | ⊕ United States | |||
| AUTASCRIPT | ⊕ 1974 | ⊕ United States | |||
| AUTASIM | ⊕ 1974 | ⊕ United States | |||
| Autopass | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Robotics | ⊕ United States | Parts assembly language for robotic manufacturing |
| BDL | ⊕ 1974 | ↓ ↑ ⊕ Business Data Processing | ⊕ United States | High-level IBM database language for describing business applications | |
| BLISS/10 | ⊕ 1974 | ↓ ↑ ⊕ Multi-purpose | ⊕ United States | ||
| CLU | ⊕ 1974 | ↓ ↑ ⊕ Multi-purpose | ⊕ Pascals | ⊕ United States | CLUster programming language - abstractions and iterators |
| DALI | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ 2d shape | ⊕ United States | Graphical display language |
| Davies decision table simulation language | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Decision tables | ⊕ United States | Simulation language with decision tables |
| DDN | ⊕ 1974 | ↓ ↑ ⊕ Experimental and other | ⊕ Single-assignment | ⊕ United States | Data-Driven Nets |
| ELI | ⊕ 1974 | ↓ ↑ ⊕ String and List Processing | ⊕ Strict evaluation LISPs | ⊕ United States | Embedded Lisp Interpreter |
| EPL | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Forecasting | ⊕ United States | Economic Programming Language |
| EXEC | ⊕ 1974 | ⊕ United States | |||
| Frames | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Frame languages | ⊕ United States | Minsky's pioneering FRL |
| GEOMED | ⊕ 1974 | ⊕ United States | |||
| IDS/II | ⊕ 1974 | ⊕ United States | |||
| Info BASIC | ⊕ 1974 | ⊕ United States | |||
| INTERLISP-10 | ⊕ 1974 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| LIL | ⊕ 1974 | ⊕ United States | Little Implementation Language | ||
| LINUS | ⊕ 1974 | ⊕ Other algorithmic | ⊕ United States | Instructional algorithmic language | |
| LISP Machine LISP | ⊕ 1974 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| LO11 | ⊕ 1974 | ⊕ PL-360s | ⊕ United States | ||
| Macro-11 | ⊕ 1974 | ⊕ Macros | ⊕ United States | ||
| MIDAS | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Visualisation | ⊕ United States | Data visualisation language |
| MINIVITAL | ⊕ 1974 | ⊕ United States | |||
| NSCRIPT | ⊕ 1974 | ↓ ↑ ⊕ String and List Processing | ⊕ Editing and processing | ⊕ United States | Text-processing scripting command language |
| PDEL-ID | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Differential Equations | ⊕ United States | Distributed differential equation |
| PL/CS | ⊕ 1974 | ↓ ↑ ⊕ Experimental and other | ⊕ Other PL/Is | ⊕ United States | PL/I subdialect for the CPS |
| PL/MIX | ⊕ 1974 | ⊕ PL-360s | ⊕ United States | MIX version of PL360 | |
| PL/PROPHET | ⊕ 1974 | ⊕ Other PL/Is | ⊕ United States | ||
| PL/S-II | ⊕ 1974 | ⊕ Other PL/Is | ⊕ United States | ||
| PROPHET | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Chemical formula languages | ⊕ United States | Chemical informatics language |
| PSG2 | ⊕ 1974 | ⊕ United States | |||
| Pygmalion | ⊕ 1974 | ⊕ Reactive | ⊕ United States | ||
| QUIKJOB | ⊕ 1974 | ⊕ United States | |||
| RDL | ⊕ 1974 | ↓ ↑ ⊕ Business Data Processing | ⊕ United States | ||
| RENDEZVOUS | ⊕ 1974 | ⊕ United States | |||
| SAINT | ⊕ 1974 | ⊕ Event scheduling | ⊕ United States | ||
| SHAZAM | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Animation | ⊕ United States | Smalltalk animation language |
| SIMPL | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ True ALGOL60s | ⊕ United States | Horizonatally sequenced Algol |
| SIXBOL | ⊕ 1974 | ⊕ United States | |||
| SLICK II | ⊕ 1974 | ⊕ United States | |||
| Smalltalk-74 | ⊕ 1974 | ⊕ Simple | ⊕ United States | ||
| SMOOTH | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ United States | ||
| SNOFLEX | ⊕ 1974 | ⊕ Patterns | ⊕ United States | ||
| TPL | ⊕ 1974 | ⊕ United States | |||
| TROFF | ⊕ 1974 | ↓ ↑ ⊕ String and List Processing | ⊕ Layout and display | ⊕ United States | Typesetter Runoff |
| TUTOR | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ CAI languages | ⊕ United States | Scripting for CAI |
| VIPTRAN2 | ⊕ 1974 | ↓ ↑ ⊕ Multi-purpose | ⊕ United States | ||
| WHELP | ⊕ 1974 | ↓ ↑ ⊕ Specialised Languages | ⊕ Arithmetic | ⊕ United States | Paedogogical Linear programming system |