Geyer is a German surname meaning "vulture". Notable people with the surname include:
Bernadette Geyer (1968), American writerBill Geyer (1919–2004), American football playerCarl Geyer (1796-1841), German entomologistCelesta Geyer (1901–1982), American circus artistDean Geyer, Australian singer and actorDenver Jack Geyer (1883-1953), American professional heavyweight boxerDavid Geyer (1855-1932), German malacologistEduard Geyer (1944), German football managerErich Geyer, German football (soccer) defenderFlorian Geyer (1490–1525), German folk heroForest Geyer (1892), American football playerGeorgie Anne Geyer (1935), American journalist and columnistHenry S. Geyer (1790–1859), American politician, lawyer, and soldierHermann Geyer (1882–1946), German generalJohn Geyer (1777–1835), mayor of PhiladelphiaKarl Andreas Geyer (1809–1853), German botanistLee E. Geyer (1888-1941), American politicianLudwig Geyer (1779-1821), German actor, playwright and painter, stepfather of Richard WagnerLudwig Geyer (cyclist) (1904-1992), German cyclistManfred Geyer (1951), German biathleteMark Geyer (1967), Australian rugby league footballerMatt Geyer (1975), Australian rugby league footballerPeter Geyer (1952), German football playerRenée Geyer (1953), Australian singerStefi Geyer (1888–1956), Hungarian violinistStephen Geyer (1950), American songwriter