Luis Diego López Breijo (American Spanish: [lwiz'ðje?o 'lopes]; born 22 August 1974) is a Uruguayan retired footballer who played as a defender, and is the coach of Peñarol.
His career as a defender was intimately connected with Cagliari in Italy, for which he appeared in over 300 competitive games in 12 years.
He later worked with the club as a manager, in several categories.
López represented Uruguay in two Copa América tournaments.