| ML | 1973 | Strict evaluation FPs | United Kingdom | Meta Language | |
| ML | 1986 | ||||
| ML | 0 | United States | Manipulator Language | ||
| ML/1 | 0 | ||||
| ML/I | 1967 | Macros | United Kingdom | ||
| ML-2000 | 0 | ||||
| MLAB | 1975 | ||||
| MLD | 1982 | United States | Data and linear programming system | ||
| MLISP | 1962 | String and List Processing | Lazy Evaluation LISPs | United States | Meta-expression LISP |
| MLISP | 1968 | String and List Processing | Lazy Evaluation LISPs | United States | |
| MLISP2 | 1972 | String and List Processing | Lazy Evaluation LISPs | United States | |
| ML-Linda | 1990 | ||||
| ML-ll | 1975 | United States | |||
| MLPM | 1996 | ||||
| MLS | 1967 | 2G Autocodes | United Kingdom | Mixed Language System | |
| ML-Twig | 1986 | String and List Processing | Lithuania | Twig in ML | |
| mLucid | 1993 | Specialised Languages | Polymorphic | Canada | Indexical Lucid |
| Mlud | 2002 | Specialised Languages | Response languages | United States | OO ML for MUDs |
| MLYACC | 1975 | Grammar and Syntax-oriented | United Kingdom |