Reiher is a surname. Notable people with the surname include:
Alan Reiher (1927–2003), Australian public servant Christian Reiher (born 1984), German mathematician Darren Reiher (born 1978), American actor Hendrik Reiher (born 1962), German rowing cox
Aircraft DFS Reiher, a 1937 German glider
Ships , at least three ships of this name
See also Reimer