| Clubname: | Prosotsani |
| Fullname: | Gymnastikos Syllogos Prosotsanis |
| Nickname: | Μαύρος Ποντικός |
| Ground: | Municipal Stadium of Prosotsani Georgios Makris |
| Capacity: | 1,200 |
| Chairman: | Konstantinos Arbouniotis |
| Manager: | Giorgos Mallios |
| League: | Drama A Local |
| Season: | 2013–14 |
| Position: | Drama A Local, 1st (did not get promoted) |
| Website: | http://www.prosotsanifc.gr/ |
GS Prosotsani is a football club based in Prosotsani, Greece. It was founded in 1970.In 2007 they managed to gain promotion to National C Division (Football League 2 or Gamma Ethniki). They were relegated in 2008.
There is also a fan club, Eftixismenoi Mazi, which supports the team. It was founded in 1995.