Quế Sơnⓘ is a district (huyện) in Quảng Nam province, Vietnam.

During the Vietnam War, it was the site of heavy fighting, including Operation Unions I and II.

From 1962 to 1967, the southern side of the valley was part of Quảng Tín province.

The district capital lies at Đông Phú.

This article about a location in Quảng Nam Province, Vietnam is a stub.