Onseepkans is a small settlement on the banks of the Orange River in Northern Cape Province, South Africa. It is a border post with Namibia for traffic between Pofadder in South Africa and Keetmanshoop in Namibia. The name either originated from a combination of three Nama words: ‘tconsiep’, ‘nias’, and ‘tcaans’ (thorntrees), or a derivative of a nama word that means 'watering place for cattle'.