Óscar René Cardozo Marín (Spanish pronunciation: ; born 20 May 1983) is a Paraguayan professional footballer who plays as a striker for Club Libertad and the Paraguay national team.
Known for his powerful left-foot shot and free-kick skills, he first gained attention whilst playing for Newell's Old Boys, which led to a move to Benfica in 2007. He scored nearly 200 official goals for the Portuguese club and won eight major titles, including the 2010 national championship, where he also was the top scorer, and the domestic treble in the 2013–14 season. He then spent two years with Trabzonspor in Turkey before joining Olympiacos.
Nicknamed "Tacuara" (from "Takuára" - Big cane in Guarani), Cardozo gained more than 45 caps for Paraguay, representing the nation at the 2007 Copa América, 2010 FIFA World Cup and 2019 Copa América. In 2006 and 2009, he was named Paraguayan Footballer of the Year.