Reiner may refer to:
- Reiner (crater), a crater on the Moon, named after Vincentio Reiner
People with the given name Reiner
edit- Reiner Knizia, a board game designer
- Reiner Schöne (born 1942), German actor
People with the surname Reiner
edit- Alysia Reiner (born 1970), American actress
- Carl Reiner (1922–2020), American film director, screenwriter, actor and father of Rob Reiner
- Charles Reiner (1924–2006), Canadian pianist of Hungarian birth
- Charles Reiner (cricketer) (1884–1947), English cricketer
- Daniel Reiner (born 1941), French politician
- Franz Reiner (1912–?), Swiss sprint canoer
- Fritz Reiner, early-20th-century Hungarian conductor
- Grete Reiner (1885–1944), Czech-German magazine editor and writer
- Herbert Reiner Jr., American diplomat
- Ira Reiner, American lawyer and politician
- Irving Reiner, American mathematician
- Jared Reiner, American professional basketball player
- Keani Reiner (1952–1994), Hawaiian surfer and sailor
- Lucas Reiner (born 1960), American painter, printmaker, photographer, filmmaker and son of Carl Reiner
- Markus Reiner, engineer and scientist, one of the founders of rheology
- Rob Reiner (born 1947), American film director, screenwriter, actor and son of Carl Reiner
- Robert Reiner (businessman) (1880–1960), machinist, entrepreneur and businessman
- Vincentio Reiner (Renieri, Reinieri), a 17th-century Italian astronomer and mathematician
Fictional characters
edit- Reiner Braun (Attack on Titan), a character in the manga series Attack on Titan all seasons (Shingeki no Kyojin)