Khlong Thom (Thai: คลองท่อม, pronounced [kʰlɔ̄ːŋ tʰɔ̂m]) is a district (amphoe) in Krabi province, Thailand.

Neighboring districts are (from the west clockwise): Ko Lanta, Nuea Khlong, Khao Phanom, and Lam Thap of Krabi Province, and Wang Wiset and Sikao of Trang province.

The residents of tambon Klong Phon's Ban Tha Maphrao community were the recipients of the 2018 Mechai Viravaidya Award.

The award, funded by the Stock Exchange of Thailand Foundation, honours communities for outstanding social development initiatives.

The award was granted for the community's reforestation of several thousand rai of mangrove forest destroyed years earlier by shrimp farmers.