West Bangka Regency is a regency (kabupaten) of Bangka Belitung Islands Province, Indonesia. It comprises the northwestern part of Bangka Island, together with a number of small islands off its coast. The regency covers an area of 2,820.61 km2 and had a population of 175,110 at the 2010 Census, rising to 204,612 at the 2020 census; the official estimate as at mid 2022 was 209,791 - comprising 108,102 males and 101,689 females. The town of Muntok is its regency seat.

The Bangka Belitung Islands is a province of Indonesia. Situated off the southeastern coast of Sumatra, the province comprises two main land masses — the islands of Bangka and Belitung — and numerous smaller islands. Bangka Belitung is bordered by the Bangka Strait to the west, the Natuna Sea to the north, the Java Sea is to the south and the Karimata Strait to the east; the two principal islands are separated by the Gaspar Strait, within which lie lesser islands such as Lepar, Pongok and Mendanau.