Last name 伦齐 (Renzi 
, Lenzie 
, 伦齐 ) , worldwide, is a common cognomen. The cognomen 伦齐 is habitual in San Marino, where it is a common surname, Italy, where it is quite a common surname, and Argentina, where it is quite a rare surname. In absolute terms, it is the most numerous in Italy, the United States, and Argentina. Very seldom, 伦齐 is the forename as well as the last name.