William Andonia Truban (October 6, 1924 – February 3, 2007) was an American veterinarian and politician who served more than two decades as a Republican in the Virginia Senate, representing Shenandoah, Clarke, Frederick and Loudoun Counties and the city of Winchester, Virginia, and sometimes Fauquier and Warren counties as well.

Four years later, he defeated Democrat Thelma T. Ore by a similar margin, although in 1979 Truban won re-election with a mere 56.9% of votes cast while running against Democrat Donald W. Patterson Jr.[3] Dr. Truban faced no opposition in his 1983 nor 1987 campaigns for re-election and announced his retirement before the 1991 primary.

A fiscal conservative as had been both his long-serving predecessor Democrats Harry F. Byrd Sr. and Harry F. Byrd Jr., Truban sat on the Joint Legislative Audit and Review Commission (JLARC) which in 1990 proposed establishing a state cash reserve to protect Virginia’s bond rating and keep the state on firm financial footing during economic downturns.

Truban continued his veterinary practice, but when health issues accumulated, he entered an assisted living facility in Woodstock, Virginia.

One of his sons, William A. Truban Jr., became a lawyer and established legal practice specializing in elder law.