|Full name||Federico Martín Elduayén Saldaña|
|Date of birth||June 25, 1977|
|Place of birth||Fray Bentos, Uruguay|
|Height||1.81 m (5 ft 11 1⁄2 in)|
|Universitario de Sucre|
|2005–2009||U. de Concepción||118||(0)|
|2012–2013||Universitario de Sucre||36||(0)|
|2015–||Universitario de Sucre|
|* Senior club appearances and goals counted for the domestic league only.
Federico Martín Elduayén Saldaña (born June 25, 1977) is an Uruguayan football goalkeeper who plays for Universitario de Sucre in the Liga de Fútbol Profesional Boliviano.  His nickname is "Vikingo" (Viking).
He began his career in the youth squads of Peñarol. He made his professional debut in 1999, in the Copa Mercosur defending Peñarol against Vasco Da Gama in Brazil. Elduayén participated in six straight Copa Libertadores editions with Peñarol from 2000–2005. He was the team's starting goalkeeper until 2005 when he lost his job and moved to Universidad de Concepción in Chile. Ever since joining the Chilean side he became the starting goalkeeper there. He renewed his contract until the end of the 2009 season. The following year Elduayén transferred to O'Higgins where he played for one season, before signing with Unión Española. In 2012, he landed in Bolivia and signing for Universitario de Sucre.
|Copa Chile 2008-09||Universidad de Concepción||Copa Chile|
- "Ficha de jugador de seleccion: Federico Elduayen" (in Spanish). Tenfield. Archived from the original on November 8, 2003. Retrieved 2009-07-21.
- Federico Elduayen – FIFA competition record
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