Cẩm Thủy is a district (huyện) of Thanh Hóa province in the North Central Coast region of Vietnam.

As of 2003 the district had a population of 110,815.

[1] The district covers an area of 430 km2.

The district capital lies at Cẩm Thủy.

This article about a location in Thanh Hóa Province, Vietnam is a stub.