| coq | 1991 | String and List Processing | France | ||
| Eiffel 3 | 1991 | France | |||
| Meroon | 1991 | France | |||
| RC | 1991 | Experimental and other | France | Reactive C | |
| Sqil | 1991 | Specialised Languages | France | Intermediate language for functional programming languages | |
| TIM | 1991 | France | |||
| Xfun | 1991 | France |