William Hodgins Biggar (September 19, 1852 – July 7, 1922) was an Ontario business lawyer and political figure.

He represented Hastings West in the Legislative Assembly of Ontario as a Liberal member from 1890 to 1898.

He also served on the parliamentary committee overseeing the construction of the Legislative Assembly building for Ontario.

Biggar began work as a merchant, but later studied law, was called to the bar in 1880 and became a partner of John Bell, legal counsel for the Grand Trunk Railway.

He also served as an officer in the Toronto volunteer militia, the Queen's Own Rifles, and was mayor of Belleville in 1887.