is an Italian former professional footballer and manager. During his playing career he made over 500 league appearances and scored over one hundred goals as a forward. He primarily played as a deep-lying forward, but he could also play as an attacking midfielder, or as a winger. Di Canio was regarded as a technically skilled but temperamental player.

Di Canio began his career in the Italian Serie A, playing for Lazio, Juventus, Napoli and Milan, before a brief spell with the Scottish club Celtic. He subsequently spent seven years in the English Premier League with Sheffield Wednesday, West Ham United and Charlton Athletic. He returned to Italy in 2004, playing for Lazio and Cisco Roma before retiring in 2008. He played for the Italian under-21s, making nine appearances and scoring twice, and was a member of the squad that finished in third place at the 1990 UEFA European Under-21 Championship under manager Cesare Maldini, but was never capped for the senior team.

Among the individual awards he received as a player, Di Canio was named SPFA Players' Player of the Year in 1997 and West Ham's player of the season in 2000. However, his career was at times characterised by controversy: he received an eleven-match ban in 1998 for pushing a referee and attracted negative publicity over his allegiance to fascism.

In 2011, Di Canio entered football management in England with Swindon Town, guiding them in his first full season as manager to promotion to League One. He was appointed as the Sunderland manager at the end of March 2013 but was sacked on 22 September after Sunderland had won only three of thirteen games under his managership.