Long Mỹ

 Long Mỹ  may refer to several places in Vietnam, including:


 * Long Mỹ (town), a district-level town of Hậu Giang Province
 * Long Mỹ district, a rural district of Hậu Giang Province
 * Long Mỹ, Bà Rịa–Vũng Tàu, a commune of Đất Đỏ District
 * Long Mỹ, Bến Tre, a commune of Giồng Trôm District
 * Long Mỹ, Vĩnh Long, a commune of Mang Thít District