The Rai Dynasty was a Hindu Brahman dynasty of Sindh, from c. 489–690 AD. The influence of the Rai empire extended from Kashmir in the east, Makran and Debal (Karachi) port in the west, Surat port in south, Kandahar, Sistan, Suleyman, Ferdan and Kikanan hills in the north, ruling an area of over 600,000 square miles.

The Emperors of this dynasty were great patrons of Hinduism and Buddhism. They established a formidable temple of Shiva in present-day Sukkur, Pakistan, derived from original Shankar, close to their capital in Al-ror. This is consistent with the historical accounts from the times of Emperor Ashoka and Harsha because Indian monarchs never sponsored a state religion and usually patronized more than one faith.

B. D. Mirchandani writes, "Our knowledge of the Rai dynasty, which is not a great deal, is derived entirely from three Muslim chronicles of Sind." For the history of the Rai and Brahman dynasties we are, therefore, almost entirely dependent on the Muslim chronicles, especially the Chachanama and Shahnama.

Rai may refer to:

Noorjehan or Noorjehan (Punjabi, Urdu: نور جہاں) was the adopted stage name for Allah Wasai (September 21, 1926 – December 23, 2000) who was a legendary singer and actress in British India and Pakistan. Her career spanned seven decades. She was renowned as one of the greatest and most influential singers of her time in South Asia and was given the honorific title of Malika-e-Tarannum (Urdu: ملکہ ترنم, English: the queen of melody).

Born in a Punjabi family of musicians, Wasai was pushed by her parents to follow in their musical footsteps and become a singer but she was more interested in acting in films and graced the earliest Pakistani films with her performances. She holds a remarkable record of 10,000 songs to her singing credits in various languages of India and Pakistan including Urdu, Hindi, Punjabi and Sindhi languages. Along with Ahmed Rushdi, she holds the highest record of film songs in the history of Pakistani cinema. She is also considered to be the first female Pakistani film director.