William Sexton (January 3, 1819 – May 20, 1895) was an Ontario farmer, auctioneer and political figure.

He represented Wentworth South in the Legislative Assembly of Ontario as a Liberal member from 1867 to 1879.

[1] He was born in Schenectady, New York in 1819 and came to Ancaster Township in Upper Canada in 1832 with his parents.

He served as a commissioner in the Court of Queen's Bench for Wentworth County.

This article about an Ontario Liberal Party MPP is a stub.