FC Dorostol (Bulgarian: ФК Доростол) is a Bulgarianfootball club based in Silistra, who currently plays at the Third League, the third division of Bulgarian football. Its home stadium "Louis Ayer" has a capacity of 12 000 seats. Club colors are blue and white. The club was officially founded in 1945. However it exists informally from 1902, which makes it the oldest Bulgarian football club.