The Cong - Viettel Football Club (Vietnamese: Câu lạc bộ Bóng đá Thể Công - Viettel), commonly known as The Cong or by its most recent former name Viettel FC, is a Vietnamese professional football club based in Hanoi. The club belongs to Viettel Sports Co. Ltd, a part of Viettel Group and competes in the V.League 1, the top tier of the Vietnamese football league system.
The Cong - Viettel, formerly known as Thể Công,[6] is one of the most widely supported clubs and also one of the most successful club in Vietnamese football history, having won a record 13 North Vietnam national titles, including nine consecutively, from 1971 to 1979 and won and 6 V.League 1 titles after Vietnam's reunification. The club has also contributed many great players to the national team.
The Cong - Viettel's traditional colour is red, leading to the nickname Cơn lốc đỏ (Red Tornado). As Thể Công, they held a long-standing rivalry with Cong An Hanoi (a club run by the Hanoi Police, not to be confused with the recently rebranded Cong An Hanoi),[7][8][9][10] known as the "Hanoi Derby" or the "Vietnamese Clasico", from the mid-1950s to their dissolution in 2002. Nowadays, the derby is contested between The Cong - Viettel, Hanoi FC and the new Cong An Hanoi.[11]