Hoàng Xuân Lãm (born 1928, Huế) was a general in the Army of the Republic of Vietnam (ARVN). Given responsibility for the I Corps Tactical Zone in 1967, Lãm coordinated the South Vietnamese offensive known as Operation Lam Sơn 719 which aimed at striking the North Vietnamese logistical corridor known as the Hồ Chí Minh Trail in southeastern Laos during 1971.