Rai may refer to:
- RAI, Radio Audizioni Italiane
- Rai is the word for paradise in Slavic languages
- Rai, an ethnolinguistic group of Nepal
- Raï, a form of folk music, originated in Oran, Algeria, from Bedouin shepherds
- Raí, Brazilian football (soccer) player
- Rai, a book by Kensaku Shimaki
- Rai, one of the characters from the fighting game Waku Waku 7
- Rai, a commune of the Orne département, in France
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