Harrer is a German surname. It commonly refers to Heinrich Harrer (1912–2006), Austrian mountaineer, sportsman, geographer, and writer.

Other notable people with the surname include:

Alois Harrer (1926–2009), West German cross-country skier Corinna Harrer (born 1991), German middle-distance runner David Harrer (born 1990), Austrian football (soccer) midfielder Ferenc Harrer (1874–1969), Hungarian politician, Minister of Foreign Affairs in 1919 Gottlob Harrer (1703–1755), German composer Karl Harrer (1890–1926), German journalist and politician Martin Harrer (born 1992), Austrian football (soccer) forward Pál Harrer (1829–1914), Hungarian councillor and politician Tim Harrer (born 1957), American ice hockey player Viona Harrer (born 1986), German ice hockey player

Other uses Harrer Building, a historic building located at 8051 North Lincoln Avenue in Skokie, Illinois

See also Harar, also spelled as Harrar, a walled city in eastern Ethiopia

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