Fat Tong Mun (Chinese: 佛堂門) is a channel in Sai Kung District of Hong Kong located between Joss House Bay (大廟灣), a bay in the southern tip of Clear Water Bay Peninsula, and the northern tip of Tung Lung Chau.

• List of channels in Hong Kong
• Tin Hau Temple, Joss House Bay

22°15′35″N 114°17′49″E / 22.25966°N 114.29689°E / 22.25966; 114.29689