Cognomen Serapin (Serafín 
, Serapin 
) , in all the world, is a rare family name. The last name Serapin is characteristic of Philippines, where it is a rare surname, Czechia, and Spain. Measured by absolute frequency, it most frequently occurs in Philippines, Spain, and the United States. More prevalently, Serapin is the forename as well as the last name.