| Atlas Autocode | ⊕ 1964 | ↓ ↑ ⊕ Multi-purpose | ⊕ Early Autocodes | ⊕ United Kingdom | Algol-like high-level Autocode |
| CAPS | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Process interaction | ⊕ United Kingdom | Precursor of CSL |
| CORAL 64 | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Other UK historic languages | ⊕ United Kingdom | Radar Establishment Systems Language |
| COWSEL | ⊕ 1964 | ⊕ Stack | ⊕ United Kingdom | ||
| EGDON | ⊕ 1964 | ⊕ Other UK historic languages | ⊕ United Kingdom | ||
| EMA | ⊕ 1964 | ↓ ↑ ⊕ Multi-purpose | ⊕ Early Autocodes | ⊕ United Kingdom | Extended Mercury Autocode |
| ESP | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Activity scanning | ⊕ United Kingdom | Elliot Bros simulator package |
| Ghoul | ⊕ 1964 | ⊕ United Kingdom | |||
| K AUTOCODE | ⊕ 1964 | ↓ ↑ ⊕ Multi-purpose | ⊕ Early Autocodes | ⊕ United Kingdom | ADvance autocode for KDF9 |
| Mercury Assembler | ⊕ 1964 | ⊕ Symbolic assemblers | ⊕ United Kingdom | ||
| SECD | ⊕ 1964 | ⊕ Other lambda | ⊕ United Kingdom | ||
| THAT | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ Individual | ⊕ United Kingdom | British simulation language |
| TREC | ⊕ 1964 | ↓ ↑ ⊕ Specialised Languages | ⊕ External systems control | ⊕ United Kingdom | Interactive control system for reactors |
| Whetstone Algol | ⊕ 1964 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United Kingdom | |
| WISP | ⊕ 1964 | ↓ ↑ ⊕ String and List Processing | ⊕ Macroassemblers | ⊕ United Kingdom | Macro-based list processing language |