Nam Thanh may refer to several places in Vietnam, including:
Nam Thanh, a ward of Điện Biên Phủ Nam Thanh, Nam Định, a commune of Nam Trực District Nam Thanh, Nghệ An, a commune of Nam Đàn District Nam Thanh, Thái Bình, a commune of Tiền Hải District Former Nam Thanh District of Hải Hưng Province
See also Nam Thành, Ninh Bình, a ward of Ninh Bình City Nam Thành, Nghệ An, a commune of Yên Thành District