Surname เร๊ะนุ้ย (Rehnui 
, เร๊ะนุ้ย) , worldwide, is a rare last name. The surname เร๊ะนุ้ย is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, เร๊ะนุ้ย is the forename as well as the last name.