Thanh Hải may refer to:
Thanh Hải (poet)
Several places in Vietnam, including:
Thanh Hải, Bình Thuận, a ward of Phan Thiết Thanh Hải, Bắc Giang, a commune of Lục Ngạn District Thanh Hải, Ninh Thuận, a commune of Ninh Hải District Thanh Hải, Hải Dương, a commune of Thanh Hà District Thanh Hải, Hà Nam, a commune of Thanh Liêm District