| ACE | 1961 | Multi-purpose | Early Autocodes | United Kingdom | Autocode for the ACE |
| COBOL Narrator EE | 1961 | Business Data Processing | COBOL-60 | United Kingdom | English Electric version of RCA COBOL |
| Elliot Mark II AUTOCODE | 1961 | Multi-purpose | Early Autocodes | United Kingdom | Version II of the Elliot Autocode |
| EMIDEC Algol | 1961 | True ALGOL60s | United Kingdom | ||
| HARTRAN | 1961 | Numerical Scientific | Fortran I-III Variants | United Kingdom | Harwell FORTRAN |
| LEO Intercode | 1961 | Multi-purpose | Other DPLs | United Kingdom | Intercode for LEO III |
| LP/90 | 1961 | Optimisation and LP | United Kingdom | Linear Programming 90 | |
| LP/94 | 1961 | United Kingdom | |||
| S1 | 1961 | Numerical Scientific | Fortran I-III Variants | United Kingdom | Harwell FORTRAN II |
| SEAL | 1961 | Business Data Processing | COBOL coeval | United Kingdom | Business relative language |
| SIRIUS Autocode | 1961 | Numerical Scientific | Early Autocodes | United Kingdom | Autocode for the Ferranti Sirus |