Last name Лещ (Лещ 
) , worldwide, is a rare cognomen. The surname Лещ is habitual in Armenia, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Belarus, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Armenia, Russia, and Kazakhstan. Very seldom, Лещ is the forename as well as the last name.