Frederick G. Kees was an American architect notable for his work in Minnesota and partnerships with Franklin B. Long and Serenus Colburn.

Minneapolis City Hall and Hennepin County Courthouse, designed by Long and Kees in 1888, is the main building used by the city government of Minneapolis, as well as by Hennepin County, in the U.S. state of Minnesota. The structure has served as mainly local government offices since it was built, and today the building is 60 percent occupied by the city and 40 percent occupied by the County. The building is jointly owned by the city and county and managed by the Municipal Building Commission. The Commission consists of the chair of the County Board, the mayor of the City of Minneapolis, a member of the County Board and a member of the Minneapolis City Council. The County Board chair serves as the president of the Commission and the mayor serves as the vice president. The building bears a striking resemblance to the city hall buildings in Cincinnati and Toronto. The City Hall and Courthouse was added to the National Register of Historic Places in 1974.