Surname Rerak (Rerak 
, หฤรักษ์ 
) , in the world, is a rare family name. The cognomen Rerak is characteristic of Poland, where it is a rare surname, Thailand, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Poland, Thailand, and the United States. More prevalently, Rerak is the forename as well as the last name.