Chai Wan Mosque, also known as Cape Collinson Mosque, is located on Cape Collinson Road in Chai Wan on Hong Kong Island, right beside the Cape Collinson Muslim Cemetery. It opened on Sunday, 4 August 1963, primarily to serve funeral prayers for the adjacent cemetery.

The building underwent a full renovation in 2005, which included installing air conditioning in the main prayer hall. The mosque is distinguished by its small golden dome topped with a crescent, and its facade bears a sign reading "Chai Wan Masjid" in Arabic, English, and Chinese. The building was designated a Grade 3 historic building on 17 May 2010 in recognition of its heritage value.

This is one of the smallest and quietest mosques in Hong Kong, visited by those wishing to explore a lesser-known side of the city's Muslim community history.