Oscar Castro may refer to:
- Óscar Castro Zúñiga (1910–1947), Chilean poet
- Oscar Castro (chess player) (1953–2015), Colombian chess master
- Óscar Castro Ramírez (1947–2021), Chilean playwright, actor and director
- Oscar Castro-Neves (1940–2013), Brazilian guitarist
- Oscar Padula Castro (born 1993), Uruguayan footballer
This disambiguation page lists articles about people with the same name.
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