Vihren Sandanski

OFC Vihren (Bulgarian: ОФК Вихрен) is a Bulgarian football club from the town of Sandanski, currently playing in the Second League. Sandanski's home ground is the Sandanski Stadium in Sandanski with a capacity of 6,000. Vihren Sandanski's team colours are green and white.

Vihren was founded in 1925, changing its name several times during its early existence. Up until the early 2000s, Vihren played mostly in either the second or third tiers of Bulgarian football. Season 2004-05 is arguably the most important in the club's history, as the team managed to promote to the A PFG, or first tier of Bulgarian football, for the first time. Vihren managed to play four consecutive seasons in the elite, before suffering relegation after the 2008-09 season. Since then, the Gladiators have played mostly in the third regional tier.