David Hyatt (born 28 June 1972) is an American software engineer and a Shadowrun game expansion author.
Hyatt was also one of the lead WHATWG developers of the HTML 5 specifications, being co-editor, with Ian Hickson, of the first public working draft, published by the World Wide Web Consortium (W3C) in January 2008.
[2] Hyatt also created and wrote the first specifications for the XBL and XUL markup languages, and has remained a member of W3C's CSS Working Group.
As a freelance writer, he also co-authored published material for Shadowrun role-playing game, including the expansion packs Renraku Arcology: Shutdown (with Brian Schoner) and Brainscan (chapters "The Return of the Father" and "Runners Ex Machina", with Robert Boyle; volume editor, Brian Schoner).
In his spare time, Hyatt developed, but no longer maintains, the software for Shadowland Six a forum for the Shadowrun gaming community.