Waldzell Conlang - Mark P. Line

Wamen - Pablo Flores

Wapadja - Thomas Schorreel

Wasabi - Mari Bandoma, Deise Benítez, Allison Buckley, Pablo Cabrera, Marc Callado, Patrick Chan, Charles Chang, Sarah Choi, Lizzy Ghedi-Ehrlich, Julie Gutiérrez, Norma Guzmán, Helen Khlystova, Jason Lin, Tom Nosewicz, Miriam Ochoa, David J. Peterson, Chris Ramiro, Michael Rivera, Adam Simpson, Amy Soong

Watakassí - Nik Taylor

WDFDspeak (Ostopian) - Jon

Web Language

Wede:i - Mark Rosenfelder

Wenedyk - Jan van Steenbergen

Wessisc - Damon M. Lord

Western Zein - Drydic_Guy

Westron - J.R.R. Tolkien

Wilawossian - Dtsdesign

Wilkins' Analytical Language - John Wilkins

WittyWordWork - Quentin Read

Woznackh - Eirik Wixøe Svela