Nagel is a surname. Notable people with the surname include:
Aaron Nagel (born 1980), American musicianAlojzy Nagel (1930–1998), Kashubian writerAnne Nagel (1915–1966), motion picture actressCarsten Nagel (born 1955), Danish writerCharles Nagel (1849–1940), American politician and lawyerChristian Heinrich von Nagel (1803–1882), German mathematicianConrad Nagel (1897–1970), American actor and matinee idolDavid Nagel, American executiveErnest Nagel (1901–1985), philosopher of scienceGerd Nagel (born 1957), West German high jumperIvan Nagel (1931-2002), German theater scholar, critic and former theater directorJan Nagel (born 1939), Dutch politicianLisle Nagel (1905–1971), Australian cricketerMorne Nagel (born 1978), South African sprinterOtto Nagel (1894-1967), German painterPatrick Nagel (1945–1984), American artistRay Nagel (1927–2015), college football coach at the University of Utah and the University of IowaSimon Nagel (born 1985), Danish footballerSteven R. Nagel (1946–2014), American astronautStuart Nagel (1934–2001), Professor Emeritus of Political Science at the University of Illinois at Urbana-ChampaignThomas Nagel (born 1937), professor of Philosophy and Law at New York UniversityTilman Nagel (born 1942), German OrientalistV. Nagel (1867–1921), missionary to the Malabar coast (Northern Kerala) of India