The B1 is a national highway of Namibia, and is the country's longest and most significant road, running the length of the country from south to north. It connects Noordoewer in the south on the South African border with Oshikango in the north on the Angolan border via Namibia's capital city Windhoek.

Okahandja is a city of 45,159 inhabitants in Otjozondjupa Region, central Namibia, and the district capital of the Okahandja electoral constituency. It is known as the Garden Town of Namibia. It is located 70 km north of Windhoek on the B1 road. It was founded around 1800, by two local groups, the Herero and the Nama.