All over the world, Roulin (Roulin 
) is a very rare unisex forename. The first name Roulin is characteristic of Mauritius, where it is quite a rare female name, Philippines, where it is a very rare primarily male, but very seldom female name, and China, where it is an extremely rare boy's name. More frequently, Roulin is the last name as well as the forename.