Riedel is a German surname. Notable people with the surname include:
August Riedel (Johann Friedrich Ludwig Heinrich August Riedel) (1799–1883), German painter
Beau Riedel (born 1975), Canadian-born ice hockey goalie
Bruce Riedel (born c. 1953), U.S. foreign policy analyst and author
Eberhard Riedel (born 1938), German former alpine skier
Georg Riedel (Altstadt Kantor) (1676-1738), German composer
Georg Riedel (Swedish jazz musician) (born 1934), Czech-born Swedish musician
Hermann Riedel (1847–1913), German composer
Klaus Riedel (1907-1944), German engineer
Lars Riedel (born 1967), German discus thrower
Ludwig Riedel (1790-1861), German botanist
Oliver Riedel (born 1961), German musician
Ryszard Riedel (1956-1994), Polish blues singer and author of many songs of group Dzem
Walter Riedel (1902-1968), German engineer
