| .QL | 2007 | logic programming, declarative programming, object-oriented programming | static typing, strong typing | — |
| Q | 2003 | functional programming, array programming | dynamic typing, strong typing | — |
| Q# | 2017 | functional programming, imperative programming, quantum programming | static typing, strong typing | — |
| Qalb | 2012 | functional programming | — | — |
| QB64 | — | — | — | — |
| QBasic | 1991 | procedural programming | — | 2 |
| QML | 2009 | reactive programming, declarative programming | dynamic typing, strong typing | 2 |
| Qore | — | procedural programming, object-oriented programming | dynamic typing | — |
| QuakeC | 1996 | procedural programming, structured programming, imperative programming | static typing, strong typing | — |
| Quartz Composer | — | — | — | — |
| QUEL | — | — | — | — |
| QuickBASIC | 1985 | — | — | 2 |
| QuickPascal | — | — | — | — |