Across the world, Grayn (Grain 
, Grein 
, Grayn 
) is a rare gender-neutral first name. The forename Grayn is characteristic of Israel, where it is a rare male name, Algeria, where it is a rare epicene name, and the Democratic Republic of the Congo, where it is a rare masculine name. Measured by absolute frequency, the name is most common in the Democratic Republic of the Congo, Algeria, and Morocco. More frequently, Grayn is the last name as well as the forename.