Surname روي (Roy 
, Rui 
, Ruy ) , across the world, is a prevalent last name. The cognomen روي is habitual in Bangladesh, where it is a common surname, India, and Israel (explore the name in all countries). Measured by absolute frequency, it is commonest in India, Bangladesh, and China. Very seldom, روي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roy | China, Philippines, United States, India, Bangladesh |
| Rui, Ruy | Portugal, China, Philippines, United States, India |
| روي | Saudi Arabia, Sudan, Egypt, Lebanon, Iraq |
Leroy, Roderick, Roderigo, Roderik, Roderyk, Rodrigo, Roi, Roj, Rojs, Roye, Royé, Ruderico, Rué, Ruì, Rói, Rúrik, Лерой, Леруа, Родерик, Родриго, Рой, Руй, Рурик, רודריגו, רוי, رائے, رودريغو, رودريك, لوروا, রয়, রায়, ルイ, ロイ, ロデリック, ローイ, 叡, 瑞, 瑞伊, 睿, 罗伊, 羅伊, 芮, 蕊, 銳, 锐, 鲁伊, 서, 예, and 태