Diego Forlán Corazo (Spanish pronunciation: [ˈdjeɣo foɾˈlan]; born 19 May 1979) is an Uruguayan footballer who plays as a striker for Internazionale and the Uruguayan national team. He is a two-time winner of both the Pichichi Trophy and the European Golden Shoe, and also received the Golden Ball as the best player at the 2010 World Cup.

Forlán was born into a family of footballers; his father Pablo having played for São Paulo (1970–1975) and Uruguay in the 1966 and 1974 World Cups and his maternal grandfather, Juan Carlos Corazo, for Independiente in Argentina.

Forlán joined Independiente himself after rising through their youth team, and after a successful four-year spell, he signed for Manchester United of England's Premier League. His form for United was not as successful as at Independiente, although he won the Premier League in 2003 and the FA Cup in 2004. In the Summer of 2004 he moved on to La Liga side Villarreal.

In his first season in Spanish football with Villarreal, Forlán scored 25 league goals and won the Pichichi Trophy. After two more successful seasons with Villarreal, Forlán joined Atlético Madrid, where he once again became the league's top scorer, and became the first player to win the Pichichi Trophy twice since Ronaldo achieved this feat in 2003–04. Forlán scored in Atlético's 2010 Europa League final victory against Fulham. In 2011 he joined Internazionale of Italy's Serie A.