Ariamsvlei is a settlement of about 500 people in the ǁKaras Region of southern Namibia and a border post between Namibia and South Africa, located 110 km (68 mi) east of Karasburg on the national B3 road.

It lies at 804 metres (2,638 ft) above sea level.

The border post with South Africa lies 1.2 kilometres (1,300 yd) to the east of the settlement; however, the actual border (at the 20th meridian east) lies 15.3 km (9.5 mi) further east along the B3, near the South African settlement of Nakop.

South Africa's border post (also named Nakop) is located a further 1.3 km (1,400 yd) away.

[2] The settlement has a petrol station, a shop, and a restaurant.