| Clubname: | Santamarina |
| Fullname: | Club y Biblioteca Ramón Santamarina |
| Nickname: | Aurinegro, Santa |
| Ground: | Estadio Municipal General San Martín, Tandil Buenos Aires Province, Argentina |
| Capacity: | 8,762 |
| Chairman: | Pablo Bossio |
| Manager: | Jorge Sotelo |
| League: | Primera Nacional |
| Season: | 2022 |
| Position: | Primera Nacional, 36th (Relegated) |
| Current: | 2019–20 Club y Biblioteca Ramón Santamarina season |
| Website: | https://web.archive.org/web/20101123165811/http://www.csydsantamarina.com.ar/ |
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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.
The club has played one season in the Argentine Primera. 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.
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