William Vincent Lucas (July 3, 1835 – November 10, 1921) was a United States politician, within the Republican party.

At the start of the American Civil War Lucas joined the Union Army, enlisting as a private, and then receiving a First Lieutenant's commission in Company B, 14th Iowa Volunteer Infantry Regiment.

When the Soldiers Home in Hot Springs was constructed in 1890, Lucas was appointed the first commandant with the rank of Colonel, and he served from 1890 until 1894.

He was an unsuccessful candidate for renomination in 1894, and served as a Delegate to the 1896 Republican National Convention.

In 1897 Lucas moved back to Chamberlain, where he served as Register of the United States Land Office until 1901.