Hagerman is a surname. Notable people with the surname include:
Amber Hagerman Barbara Oliver Hagerman (1943–2016), Canadian classical musician Betty Sue Hagerman, American tennis coach Christopher Alexander Hagerman (1792–1847), Canadian politician and judge Daniel Hagerman (1794–1821), Canadian lawyer and politician Douglas Hagerman (born 1960), American businessman Helge Hagerman (1910–1995), Swedish actor and film producer Herbert James Hagerman (1871–1935), American lawyer and politician J. J. Hagerman (1838–1909), American industrialist Jamie Hagerman (born 1981), American ice hockey player John Hagerman (1881–1960), American long jumper and triple jumper Oscar Hagerman (born 1936), Mexican architect Rip Hagerman (1888–1930), American baseball player