Óscar Martínez or Oscar Martinez may refer to:

• Oscar Martínez (actor) (born 1949), Argentine actor
• Óscar Martínez (basketball) Paraguayan basketball coach, see Paraguay women's national basketball team
• Oscar Martínez (fencer) (born 1889), Argentine Olympic fencer
• Óscar Martínez, Spanish footballer, see 1990–91 UE Lleida season
• Oscar Martinez (musician) (born 1934), Texan Spanish-language musician
• Óscar Martínez (presenter) (born 1976), Spanish TV and radio presenter
• Óscar Martínez (tennis) (born 1974), Spanish tennis player
• Óscar Martínez (journalist and author)
• Oscar Martinez (The Office), a character in the American sitcom The Office.

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