Rehder is a German surname. Notable people with this surname include the following:

• Alfred Rehder (1863–1949), German-American botanist and Harvard professor

• Elke Rehder (born 1953), German artist

• Harald Alfred Rehder (1907–1996), American malacologist

• Heinrich Rehder (1887–1976), German athlete

• Lois Corea Rehder (1911–1988), from the USA, spouse of Harald Alfred Rehder

• Patrícia Rehder Galvão, known as Pagu (1910–1962), Brazilian poet, journalist and translator.

• Tom Rehder (born 1965), American football player

See also

• Reder

• Reeder