Omar Caetano Otero (8 November 1938 – 2 July 2008) was a Uruguayan footballer.
He represented Uruguay at the 1966 FIFA World Cup and 1970 FIFA World Cup.
He played club football with Peñarol, where he won 8 league titles, 4 major international titles and played in a record 57 derby matches against rivals Nacional.
He also spent the 1975 season in the NASL with the New York Cosmos.