Khlong Yong (Thai: คลองโยง, pronounced [kʰlɔ̄ːŋ jōːŋ]) is one of three tambons (sub-districts) of Phutthamonthon District, Nakhon Pathom Province, on the outskirts of Bangkok in central Thailand.
Khlong Yong is about 14 km (8.7 mi) north of the district office.
Neighbouring tambons are (from the north clockwise): Naraphirom of Bang Len District; Nong Phrao Ngai of Sai Noi District; Ban Yai of Bang Yai District, Nonthaburi Province; and Salaya, Maha Sawat, Lan Tak Fa, and Bang Kaeo Fa of Nakhon Chai Si District.
Khlong Yong covers 19,728 rai (31.565 km2; 12.187 sq mi) and includes eight villages.
It received a community title deed to that effect on 12 February 2011 from the government of Abhisit Vejjajiva.