Khlong Phasi Charoen (Thai: คลองภาษีเจริญ, pronounced [kʰlɔ̄ːŋ pʰāː.sǐː t͡ɕā.rɤ̄ːn]) is a canal west of the Chao Phraya River in the Thonburi area of the Bangkok conurbation.
It starts at Khlong Bangkok Yai near Wat Paknam Bhasicharoen, Bangkok and ends south of Wat Ang Thong, Tambon Don Kai Di, Krathum Baen District, Samut Sakhon Province.
Originally Phasi Charoen proposed to fund the project in exchange for the right to collect tolls.
Its 112,000 baht cost was financed via tax deductions from the amount Phra Phasi Sombat Boriboon collected, thus making the canal toll-free.
Khlong Phasi Charoen was the location used for filming the boat chase scene in The Man with the Golden Gun in 1974.