Phước Sơn () is a former rural district (huyện) of Quảng Nam province in the South Central Coast region of Vietnam. As of 2003 the district had a population of 20,141. The district covers an area of . The district capital lies at Khâm Đức.
The district was the location of the 1968 Battle of Kham Duc, a major battle of the Vietnam War.
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