Bình Sơn is a rural district located in the Quảng Ngãi province within the South Central Coast region of Vietnam. The district covers a total area of 464 km² (179 sq mi) and its administrative capital is situated in Châu Ổ.
The district is historically significant as the birthplace of Trương Định, a Vietnamese mandarin and anti-French guerrilla leader. As of 2003, the population of Bình Sơn was recorded at 177,943 residents.