Surname ไทรน้อย (Sai Noi 
, Saiyoi 
, ไทรน้อย) , all over the world, is a very rare last name. The last name ไทรน้อย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ไทรน้อย is the forename as well as the last name.