Federico Elduayen
 Federico Martín Elduayén Saldaña (born June 25 1977) is an Uruguayan football goalkeeper who plays for Guabirá 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.