Dellinger is a surname. Notable people with the surname include:
Bill Dellinger (born 1934), US athleteDavid Dellinger (1915-2004), pacifist and activist for nonviolent social changeHampton Dellinger, 2008 Democratic nomination for Lieutenant Governor of North CarolinaJohn Howard Dellinger (1886-1962), telecommunication engineer and vice chairman of Institute of Radio EngineersMatt Dellinger, US journalist of The New YorkerRudolf Dellinger (1857-1910), German composer, KapellmeisterWalter E. Dellinger III (born 1941), US jurist, United States Solicitor General 1996–1997FictionalDellinger is a character in One Piece in who fights with kicks.