| INTERCAL | 1972 | Other algorithmic | United States | ||
| LINUS | 1974 | Other algorithmic | United States | Instructional algorithmic language | |
| MORON | 1969 | Other algorithmic | United States | Paper language for teaching computing | |
| OPAL | 1972 | Specialised Languages | Other algorithmic | United States | |
| OSL | 1968 | Other algorithmic | United States | Operating System Language | |
| OSL/2 | 1970 | Experimental and other | Other algorithmic | United States | Systems language |
| PIL | 1969 | Specialised Languages | Other algorithmic | United States | Procedure Implementation Language |
| SAL | 1977 | Specialised Languages | Other algorithmic | Denmark | Paper language suitable for semantic definition |
| Stark algorithm language | 1968 | Specialised Languages | Other algorithmic | United States | Language for showing provable algorithms |