Last name Регалин (Regalyn 
, Regalin 
, Regaline 
) , in the world, is a rare family name. The family name Регалин is characteristic of Uruguay, where it is a rare surname, Italy, and Brazil, where it is a very rare surname. Measured by absolute frequency, the name is most common in Brazil, Italy, and Russia. Very seldom, Регалин is the forename as well as the last name.