The Trịnh lords, formally titled as “Prince” of Trịnh, also known as the House of Trịnh or the Trịnh clan, were a feudal nobility clan that ruled Northern Vietnam, during the Later Lê dynasty.

During Vietnam's monarchial period, the Vietnamese nobility were classified into eleven ranks, with names similar to their Chinese equivalent. These are listed here from the highest to the lowest, along with their equivalent European titles.