Daniel L. Hannifin (June 12, 1863 in Portland, Dodge County, Wisconsin[1] – ?), was a member of the Wisconsin State Assembly. He graduated from high school in Waterloo, Wisconsin. For twelve years he was employed at a teaching school, and was also a farmer. He served as bookkeeper and secretary of the Waterloo Canning and Pickeling Company, and was the town clerk of Portland, Wisconsin.[2]
Hannifin was elected to the Assembly in 1902. Additionally, he served as Clerk of Portland. He was a Democrat.