Diego Martín Alonso López (Spanish pronunciation: [ˈdjeɣo aˈlonso]; born 16 April 1975) is an Uruguayan professional football manager and former player who played as a striker.

Other than in his own country, he played football in Argentina, Spain, Mexico and China in a 16-year career, notably winning the 2001–02 Segunda División with Atlético Madrid while being crowned top scorer.

Alonso began working as a coach in 2011, being in charge of clubs in Uruguay, Paraguay, Mexico and the United States and leading Pachuca to the 2016 Clausura and the 2016–17 CONCACAF Champions League titles.

[2] After a brief spell in Argentina for Gimnasia La Plata (he would also represent the club towards the end of his career), Alonso moved to Spain, where he played with five teams in as many years: Valencia,[3] Atlético Madrid (where he scored 22 goals in 2001–02's Segunda División, helping the Colchoneros to return to La Liga and forming an efficient attacking partnership with countryman Fernando Correa, who added 13),[4][5] Racing de Santander, Málaga[6] and Real Murcia,[7] where he did not have a good scoring record overall.

[9] Alonso was chosen for the nation's squad for that year's Copa América, and scored on his quarter-final penalty shootout attempt (5–3 victory) for the eventual runners-up, also against Paraguay, the hosts.

[11] Alonso started working as a manager in 2011, being in charge in quick succession of Bella Vista, Guaraní, Peñarol and Olimpia (the second and fourth sides from the Paraguayan Primera División).

[27][28] On 10 October 2023, Alonso was named manager of Sevilla, taking over from José Luis Mendilibar;[29] the side stood 14th in the table at the time of his arrival.