Fabio Grosso Ufficiale OMRI (Italian pronunciation: [ˈfaːbjo ˈɡrɔsso]; born 28 November 1977) is an Italian professional football manager and former player. He is currently the head coach of Serie A club Sassuolo.

After playing for several smaller Italian clubs, such as Renato Curi, Chieti and Perugia, he made his breakthrough during his two seasons as a left-back with Palermo, which earned him a move to defending Serie A champions Inter Milan in 2006. During his only season with Inter, he helped the club defend the Serie A title and win the Supercoppa Italiana. He later also won titles with Lyon in France and with Juventus. Grosso retired in 2012 after winning the Scudetto with Juventus.

At international level, Grosso made 48 appearances for Italy and scored the decisive late first goal against Germany in the 2006 World Cup semi-final. In the 95th minute of the match vs Australia, he cut inside past Lucas Neill, who slid to block and mistimed his tackle, bringing Grosso down. Totti then scored the resultant winning penalty.

He also scored the winning penalty in the penalty shootout against France in the final of the tournament which enabled the Azzurri to win the trophy for the fourth time in their history. He also represented Italy at UEFA Euro 2008 and at the 2009 FIFA Confederations Cup.

Grosso was born in Rome but hails from Chieti, Abruzzo, where his family soon returned to. Grosso joined Renato Curi Angolana in 1994 and played in the club's youth system until 1995. He was promoted to the senior squad for the 1995–96 season and soon became a key part of the first team. Following the 1997–98 season, he left the Eccellenza club to join Chieti for an undisclosed transfer fee. Grosso made 108 official appearances for Renato Curi, scoring 47 goals as an attacking midfielder and left winger.

In summer 1998, Grosso transferred to Chieti of Serie C2. An attacking midfielder at the time, he again impressed in his three-season spell with Chieti. He scored 17 goals in 68 league appearances. He was scouted by Serie A club Perugia in 2001, and in mid-summer, Grosso officially transferred to the club.

In July 2001, Grosso officially joined Perugia. In his debut Serie A season, he made 24 appearances and scored one goal. By now, he had been converted into a left wing-back by head coach Serse Cosmi and in his second season in Perugia, he maintained a starting position and made 30 league appearances, scoring four goals. In his third season with Perugia, Grosso made just 12 appearances in the first six months of the 2003–04 season. Grosso transferred from Perugia in January 2004 to Palermo, which at the time played in Serie B.

During the winter transfer window in January 2004, Grosso transferred to the Sicilian side and they earned promotion at the conclusion to the season. Grosso made 21 appearances for his new club in the latter portion of the 2003–04 season, scoring one goal, as the club won the Serie B title.