Geyer is a German surname meaning "vulture". Notable people with the surname include:
Bernadette Geyer (1968), American writer
Bill Geyer (1919–2004), American football player
Carl Geyer (1796-1841), German entomologist
Celesta Geyer (1901–1982), American circus artist
Dean Geyer, Australian singer and actor
Denver Jack Geyer (1883-1953), American professional heavyweight boxer
David Geyer (1855-1932), German malacologist
Eduard Geyer (1944), German football manager
Erich Geyer, German football (soccer) defender
Florian Geyer (1490–1525), German folk hero
Forest Geyer (1892), American football player
Georgie Anne Geyer (1935), American journalist and columnist
Henry S. Geyer (1790–1859), American politician, lawyer, and soldier
Hermann Geyer (1882–1946), German general
John Geyer (1777–1835), mayor of Philadelphia
Karl Andreas Geyer (1809–1853), German botanist
Lee E. Geyer (1888-1941), American politician
Ludwig Geyer (1779-1821), German actor, playwright and painter, stepfather of Richard Wagner
Ludwig Geyer (cyclist) (1904-1992), German cyclist
Manfred Geyer (1951), German biathlete
Mark Geyer (1967), Australian rugby league footballer
Matt Geyer (1975), Australian rugby league footballer
Peter Geyer (1952), German football player
Renée Geyer (1953), Australian singer
Stefi Geyer (1888–1956), Hungarian violinist
Stephen Geyer (1950), American songwriter
