From a Late Latin personal name meaning ‘conqueror’. This was popular among early Christians as a reference to Christ's victory over death and sin, and was borne by several saints. An influence on the choice of the name in more recent times was the American actor Victor Mature (1915–99).
Italian: 1. occupational name for a professional champion, from Late Latin campio, genitive campiōnis (see Champion, and compare Kemp). 2. habitational name from a place called Campione, of which there is one in Lombardy.