The Tokyo Waterworks Historical Museum (東京都水道歴史館, Tōkyōto suidō rekishikan) is a public museum in Tokyo, Japan. It is the history museum for the development of the freshwater supply and distribution in Tokyo. The museum was opened on 15 April 1995. The museum consists of two exhibition floors and a library on the third floor. It is located in Hongō next to the Hongō Water Supply Station Park. Admission is free.