| Clubname: | Unión San Martín |
| Fullname: | Club Sport Unión San Martín |
| Chairman: |  Hugo Franco Farfán |
| Manager: | Lizandro Barbarán |
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Unión San Martín is a Peruvian football club located in the city of Pisco, Peru.
The Club Sport Unión San Martín was founded in 1948.
In 2016 Copa Perú, the club qualified to the Departamental Stage, but was eliminated by Francisco Oropeza in the Quarterfinals.[1]
In 2017 Copa Perú, the club qualified to the National Stage, but was eliminated by Binacional in the Quarterfinals.[2] [3]
In 2018 Copa Perú, the club qualified to the Departamental Stage, but was eliminated by Santos in the Quarterfinals.
In 2019 Copa Perú, the club qualified to the Provincial Stage, but was eliminated by Las Américas in the Semifinals.
In 2021 Copa Perú, the club qualified to the National Stage, but was eliminated when it finished in 6th place.[4]
Winners (3): 1991, 2017, 2022
Winners (3): 1991, 2008, 2017
Runner-up (2): 2010, 2016
Winners (3): 1991, 2012, 2015
Runner-up (5): 1989, 2010, 2016, 2017, 2019