|Full name||Santiago Javier Ostolaza Sosa|
|Date of birth||10 July 1962|
|Place of birth||Dolores, Soriano, Uruguay|
|Height||1.90 m (6 ft 3 in)|
|Uruguay U17 (Head Coach)|
|1992–1993||Gimnasia La Plata||13||(3)|
|2001||River Plate (URU)|
|Real Sociedad de Zacatecas|
|Alacranes de Durango|
|Guerreros de Hermosillo|
|* Senior club appearances and goals counted for the domestic league only|
Santiago José Ostolaza Sosa (born 10 July 1962 in Dolores, Soriano) is an Uruguayan former football midfielder and the current manager of the Uruguayan U-17 national team. Among others clubs, he was manager for Nacional of Uruguay. He played for the same team when he was a player, and in 1988 he received the prize as man of the match after the Intercontinental Cup final against PSV Eindhoven, in which he scored two goals.
- Ostolaza, Ostolaza (2 January 2009). "Toyota Cup - Most Valuable Player of the Match Award". RSSSF. Archived from the original on 14 April 2009. Retrieved 4 November 2009.
- Passo Alpuin, Luis Fernando (2009-05-01). "Uruguay - Record International Players". RSSSF. Retrieved 2009-07-21.
- Santiago Ostolaza – FIFA competition record
- Santiago Javier Ostolaza at BDFA (in Spanish)
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