William James Boyd (born April 27, 1979), is the former bass guitarist of alternative metal band Evanescence.

Boyd became a full-time member of Evanescence in June 2003, but had co-written two of their unreleased songs, "October" and "So Close," prior to that. He spent stints with local Little Rock punk bands such as The Visitors and Lucky Father Brown and is currently in the bands Two Spines and American Princes. He left Evanescence in June 2006 due to not wanting to do another big tour, and was replaced by Tim McCord.

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