Allemang is a surname. Notable people with the surname include:
Dean Allemang, American computer scientist Drew Allemang, assistant general manager and director of Canadian scouting for the Hamilton Tiger-Cats of the Canadian Football League Margaret Allemang (1914–2005), Canadian nurse and academic Marv Allemang (born 1953), Canadian football player Jon Allemang (born 1982), American Honors Chemistry Educator, Westside High School, Omaha, NE