William A. Thomas Jr. (born June 1, 1947) is a businessman, commercial fisherman, and politician from the U.S. state of Alaska.

Following redistricting, Thomas lost reelection in 2012 by 32 votes to 23-year-old Jonathan Kreiss-Tomkins, a political newcomer who left Yale University to run.

5th District member of the Alaska House of Representatives, Albert Kookesh, filed to run for the Senate, eventually winning.

Thomas ran for the 5th District House seat, citing his experience as a lobbyist as being beneficial to the position.

Thomas won election in 2004 by 59 votes over Tim June, a fellow commercial fisherman from Haines, who was active in environmental and watershed issues for many years.

[6] Due to an Alaskan Supreme Court order, the redistricting board has redrawn the district lines for the 2012 election based on state constitutional requirements.

Constituents from Haines Borough have objected to the new map, town mayor Stephanie Scott stated "we do not believe that we are socio-economically integrated with the Mendenhall Valley, we don't have the same concerns, the same needs.