Guy W. Dailey (July 24, 1827 - January 2, 1899) was an American farmer from the Town of Hudson, Wisconsin who spent a single one-year term as a member of the Wisconsin State Assembly from St. Croix County.
Dailey was born in Massena, New York on July 24, 1827; received a common school education and became a farmer. At some point he immigrated to Canada West, and in 1850 moved from there to St. Croix County, settling in the Town of Hudson.
He held various local offices, including chairman of his town, before being elected in 1876 to the Assembly as a member of the Reform Party (a short-lived coalition of Democrats, reform and Liberal Republicans, and Grangers formed in 1873, which secured the election of a governor and a number of state legislators), with 1,860 votes to 1,744 for Republican G. M. Street. (The incumbent, fellow Reformer Philo Boyden, was not a candidate for re-election.) Dailey was assigned to the standing committee on privileges and elections.