Hà Giang (Vietnamese pronunciation: [haː2 zaːŋ1], ) was a former province in the Northeast region of Vietnam. It was located in the far north of the country, and contains Vietnam's northernmost point. It shared a 270 km long border with Yunnan province of southern China, and thus was known as Vietnam's final frontier. It covered an area of 7,927.55 km (3,060.84 sq mi), comprising 1 city and 10 rural districts, with a population of 899,900 in 2023.
The provincial capital, also called Hà Giang, was connected by Highway 2 and is 320 km away from Hanoi. The border crossing was at Thanh Thủy, 25 km from the provincial capital. It was one of the poorest provinces of Vietnam as it had mountainous topography with the least potential for agricultural development.