Kroll is a German surname. Notable people with the surname include:
Eric Kroll (born 1946), American photographerFredric Kroll, (born 1945), American composer and writerHenryk Kroll, (born 1949), Polish politician, leader of German minority in PolandJoachim Kroll, (1933–1991), German serial killerJules B. Kroll, (born 1941), American CEO of Kroll Bond Rating Agency and Chairman of K2GlobalLeon Kroll (1884–1974), American painterNick Kroll (born 1978), American actor and comedian, son of Jules B. KrollTed Kroll (1919–2002), professional golferUna Kroll (1925-2017), British nun, missionary doctor, parliamentary candidate, priest, and campaigner for women's ordinationWilhelm Kroll (1869–1939), German philologistWilliam Justin Kroll (1889–1973), Luxemburger metallurgist, inventor of the Kroll processWilliam Kroll (1901–1980), American violinist and composerWoodrow M. Kroll (born 1944), American evangelist, principal of the "Back to the Bible" radio ministry