Rai may refer to:

• RAI (Radio Audizioni Italiane)
• Rai (An ethnolinguistic group of Nepal)
• Raï (A form of folk music, originated in Oran, Algeria, from Bedouin shepherds)
• Rai , a book by Kensaku Shimaki
• Rai , one of the characters from the fighting game Waku Waku 7

Rai is a family name in India. People with the surname include :

• Aishwarya Rai, film actress and Miss India, 1994
• Gulshan Rai, film producer of Indian films
• Tarundeep Rai, Indian Olympian competing in archery