| WATFIV | 1968 | — | — | — |
| WEB | — | — | — | 1 |
| WebAssembly | 2015 | structured programming, imperative programming, stack-oriented programming | — | — |
| WebGL | 2011 | — | — | — |
| WebGPU Shading Language | — | — | — | — |
| Wenyan‑lang | 2019 | — | — | — |
| Whiley | 2010 | functional programming, imperative programming | safe typing, structural typing, strong typing | — |
| Whirlwind assembler | 1951 | — | — | — |
| Whitespace | 2003 | esoteric programming | — | — |
| Windows App Studio | — | — | — | — |
| Wiring | 2003 | object-oriented programming | — | — |
| WLanguage | 1992 | — | — | — |
| Wolfram Language | 1988 | functional programming, imperative programming, multi-paradigm programming, array programming, declarative programming, object-oriented programming | dynamic typing, strong typing | — |
| Wollok | 2015 | — | — | — |
| WordBASIC | 1989 | — | — | — |
| Work Flow Language | — | — | — | — |
| Wren | — | class-based programming | — | — |
| WxBasic | 2002 | — | — | — |
| Wyvern | 2013 | functional programming, object-oriented programming | structural typing | — |