Club y Biblioteca Ramón Santamarina, also known simply as Santamarina, is an Argentine football club from the city of Tandil, Buenos Aires Province.

The team currently plays in Torneo Federal A, the tournament of third division of the Argentine Football Association.

The club is named after Joaquin Ramón Cesareo Manuel Santamarina (1827-1904), an Argentine businessman.

In 1985, it competed in the National championships, where it finished second in their group to qualify for the 2nd round where it was eliminated by Independiente 6–3 on aggregate.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.