| APRIL | 1977 | United Kingdom | |||
| CONA | 1977 | On-Line | True ALGOL60s | United Kingdom | Conversational Algol |
| DPL | 1977 | Numerical Scientific | Arithmetic | United Kingdom | Mathematical interaction language |
| EDSIM | 1977 | String and List Processing | Activity scanning | United Kingdom | |
| EMAS LOGO | 1977 | United Kingdom | |||
| IMP 77 | 1977 | Multi-purpose | Early Autocodes | United Kingdom | |
| MAX | 1977 | United Kingdom | |||
| NNL2 | 1977 | United Kingdom | |||
| NPL | 1977 | String and List Processing | United Kingdom | New Pattern Language | |
| PCF | 1977 | United Kingdom | |||
| PROPLAN | 1977 | United Kingdom | |||
| RAPT | 1977 | Specialised Languages | Robotics | United Kingdom | Edinburgh robotics language |
| RPL 11 B | 1977 | United Kingdom | Report preparation language | ||
| SESPOOL | 1977 | Multi-purpose | True ALGOL60s | United Kingdom | Simple Extensible Systems PrOgramming Oriented Language |