reiff
Reiff may refer to:
Places
;Germany
- Reiff (Rhineland-Palatinate), a municipality
;Italy
- Riva del Garda ({{langx|de|Reiff am Gardasee|link=no}}), in Trentino-Alto Adige/Südtirol
;United Kingdom
- Reiff, Ross-shire, Scotland, a crofting and fishing village
;United States
- Reiff, California, a former settlement
- Reiff's Antique Gas Station Automotive Museum, California
- Reiff Farm, a historic farm in Pennsylvania
People
- Charles Reiff (1940–1964), Luxembourgian boxer
- Ethan Reiff, American American screenwriter and producer
- Fritz Reiff (1888–1953), German stage and film actor
- Gaston Reiff (1921–1992), Belgian athlete
- Joe Reiff (1911–1988), American basketball player
- Johann Gottfried Reiff ({{fl.|1805}}), German philologist
- Lester Reiff (1877–1948), American jockey
- Marion Reiff (born 1979), Austrian diver
- Patricia Reiff, Space scientist
- Rick Reiff (born 1952), American Pulitzer Prize-winning journalist
- Riley Reiff (born 1988), American football player
- Rudolf Reiff (1901–1961), German actor
- Ryszard Reiff (1923–2007), Polish politician, lawyer and resistance fighter
- Søren Reiff (born 1962), Danish guitar player, producer, composer and author