| WATFIV | — | 1968 | — |
| WEB | — | — | — |
| Web Language | imperative programming | — | — |
| WebAssembly | imperative programming, structured programming, stack-oriented programming | 2015 | World Wide Web Consortium, Mozilla, Google, Apple Inc., Microsoft |
| WebGL | — | 2011 | Khronos Group |
| WebGPU Shading Language | — | — | World Wide Web Consortium |
| WebMethods Flow | object-oriented programming | — | — |
| Wenyan‑lang | — | 2019 | — |
| Whiley | imperative programming, functional programming | 2010 | — |
| Whirlwind assembler | — | 1951 | — |
| Whitespace | esoteric programming | 2003 | — |
| Windows App Studio | — | — | Microsoft |
| Wiring | object-oriented programming | 2003 | — |
| WLanguage | — | 1992 | — |
| WMLScript | — | — | — |
| Wolfram Language | functional programming, imperative programming, multi-paradigm programming, array programming, declarative programming, object-oriented programming | 1988 | Stephen Wolfram, Wolfram Research |
| Wollok | — | 2015 | — |
| WordBASIC | — | 1989 | Microsoft |
| Work Flow Language | — | — | Burroughs Corporation |
| Wren | class-based programming | — | — |
| WSFN | — | 1977 | — |
| WxBasic | — | — | — |
| Wyvern | object-oriented programming, functional programming | 2013 | — |