Chương Mỹ is a district (huyện) of Ha Noi in the Red River Delta region of Vietnam.
The District is the site of the Battle of Tốt Động – Chúc Động, 1426 which secured Vietnam's independence from Ming China. Tốt Động and Chúc Động are two villages 6km apart. Trẩm Mountain is situated in Long Châu hamlet, Phụng Châu commune of Chương Mỹ district, 20km from Hanoi.