Hà Giang  is a province in the Northeast region of Vietnam. It is located in the far north of the country, and contains Vietnam's northernmost point. It shares a 270 km long border with Yunnan province of southern China, and thus is known as Vietnam's final frontier. The province covers an area of 7945.8 square kilometres and as of 2008 it had a population of 705,100 people.

The provincial capital, also called Hà Giang, is connected by Highway 2 and is 320 km away from Hanoi. The border crossing is at Thanh Thủy, 25 km from the capital, Hà Giang town. It is one of the poorest provinces of Vietnam as it has mountainous topography with the least potential for agricultural development.

The province borders China with a length of over 270 kilometres (170 mi); the border gate is known as the Thanh Thủy. In addition, there are three smaller gates namely, the Phó Bảng, the Xín Mần and Săm Pun.