Throughout the world, Roini (Roini 
, Роини 
) is quite a rare mostly masculine, but uncommonly female first name. The first name Roini is habitual in Georgia, where it is quite a common masculine name, Slovakia, where it is a rare boy's name, and Greece. Measured by absolute frequency, it is the most numerous in Georgia, India, and Russia. Likewise, Roini is the last name as well as the forename.