John Francis Geiger (1873–1956) was an American rower who competed in the 1900 Summer Olympics in Paris. He was part of the American boat Vesper Boat Club, which won the gold medal in the eights.Nicole Geiger is a Swiss Paralympic equestrian who competed at the 2024 Summer Paralympics in Paris.
As a South German and Jewish (Ashkenazic) surname, Geiger is an occupational name for a violin player or maker, and it is derived from Middle High German gīger (an agent derivative of gīge "violin") and German Geiger.
Nicole Geiger is a Swiss Paralympic equestrian who competed at the 2024 Summer Paralympics in Paris.