Huai Thap Salao (Thai: ห้วยทัพเสลา, pronounced [hûa̯j tʰáp sā.lǎw]) is a river in Uthai Thani Province, Thailand. It is a tributary of the Sakae Krang River, part of the Chao Phraya River basin.

15°24′N 99°47′E / 15.400°N 99.783°E / 15.400; 99.783