List of Famous people with last name Valiant

John L. Sullivan was an American professional wrestler and manager, better known by his ring name, Johnny Valiant. He competed in the World Wide Wrestling Federation (WWWF), which became the World Wrestling Federation during his time with the promotion. He won the World Tag Team Championship two times. The first run was with his first and most famous storyline brother Jimmy Valiant over Tony Garea and Dean Ho on May 8, 1974; his second title run was with his second storyline brother Jerry Valiant over Tony Garea and Larry Zbyszko on March 6, 1979.

James Harold Fanning is an American professional wrestler and author better known as Jimmy Valiant.

Leslie Gabriel Valiant is a British American computer scientist and computational theorist. He is currently the T. Jefferson Coolidge Professor of Computer Science and Applied Mathematics at Harvard University. Valiant was awarded the A.M. Turing Award in 2010, having been described by the A.C.M. as a heroic figure in theoretical computer science and a role model for his courage and creativity in addressing some of the deepest unsolved problems in science; in particular for his "striking combination of depth and breadth".

Halfdan the Valiant was a legendary Scanian prince, who was the father of Ivar Vidfamne according to Hervarar saga, the Ynglinga saga, Njal's Saga and Hversu Noregr byggdist. The genealogical work Hversu Noregr byggdist gives his father as Harald the Old, his grandfather as Valdar and his great-grandfather as Hróarr.