Cong An Hanoi Football Club (Vietnamese: Câu lạc bộ bóng đá Công an Hà Nội, lit. 'Hanoi Police Football Club') or simply CAHN is a Vietnamese professional football club based in Hanoi. The team competed in V.League 1, the highest division of Vietnamese football. Its predecessor was Cong An Nhan Dan (Vietnamese: CLB Công An Nhân Dân, lit. 'People's Public Security Football Club'), which changed its name after being promoted to V.League 1 from the 2023 season.