Worldwide, Летвин (Letwin 
, Lettvin 
, Летвин 
) is a rare unisex first name. The given name Летвин is habitual in Zimbabwe, where it is quite a rare female name, South Africa, where it is a very rare primarily feminine, but very infrequently male name, and India, where it is an extremely rare boy's name. Much less frequently, Летвин is the last name as well as the forename.