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