Kowloon Reservoir, part of the Kowloon Group of Reservoirs, is a reservoir in Sha Tin District, Hong Kong, located within the Kam Shan Country Park. The total water storage capacity is 353 million gallons and the total cost of construction was $619,000.

In 1898, the British took over the New Territories and New Kowloon and the Public Works Department immediately sent engineering teams to explore water sources. However, the team found suitable valleys to build reservoirs in the west of Beacon Hill and south of Needle Hill. Construction for Kowloon Reservoir commenced in 1901 and it was completed in 1910, making it the first reservoir in the New Territories.

Expansion of the Kowloon Reservoir began in 1922. It aimed to expand the filtration plant in order to have a daily output of 3.58 million gallons of water; enlarge the catchment area; and improve the dams’ walls. After the expansion, the Kowloon Reservoir provided 1.5 million gallons of water to the locals daily.

The completion of the Kowloon Reservoir reduced the locals’ dependence on getting water from wells. The locals got water from the reservoir. This led to the decline of the Yau Ma Tei Pumping Station.

• List of reservoirs of Hong Kong
• Kowloon Group of Reservoirs
• Kowloon Reception Reservoir
• Shek Lei Pui Reservoir

• Reservoirs of Hong Kong (1) Hong Kong and Kowloon (in Chinese)
• Water Supplies Department. Fun of Fishing in Hong Kong Reservoirs