Chai Wan Kok is an area in Tsuen Wan, Hong Kong. It is located at the west end of Tsuen Wan Town. While its southeast is industrial area, its hilly northeast and coastal southwest are residential. It is on the main access between Tuen Mun and Tsuen Wan.

Tsuen Wan is a town built on a bay in the western New Territories of Hong Kong, opposite of Tsing Yi Island across Rambler Channel. The market town of Tsuen Wan emerged from the surrounding villages and fleets of fishing boats in the area. The now-crowded city is around the present-day Tsuen Wan station of the MTR. Its coastline was further extended through land reclamation.