Kopp is a surname. Notable people with the surname include:
Carlo Kopp, Australian defence analystElisabeth Kopp (born 1936), Swiss politicianEmil Kopp (1817–1875), French chemistGeorg von Kopp (1837–1914), German cardinalGeorges Kopp (1902–1951), Belgian commander of Republican forces in the Spanish Civil WarHal Kopp (1909–1998), American college football coachHermann Kopp (born 1954), German composer and musicianHermann Franz Moritz Kopp (1817–1892), German chemistJames Charles Kopp (born 1954), American murdererJoseph Eutych Kopp (1793–1866), Swiss antiquarian (see Kopp, Joseph Eutychius, Encyclopedia Americana (1920)Magdalena Kopp (1948–2015), member of the Frankfurt Revolutionary Cells (RZ), wife and accomplice of Carlos the JackalNancy K. Kopp (born 1943), American politicianPavol Kopp, Slovak sport shooterQuentin L. Kopp (born 1928), American politicianSheldon Kopp (1929–1999), American psychotherapistStephen J. Kopp (1951–2014), American university presidentWendy Kopp (born 1967), president and founder of Teach For America