Majma-ul-Bahrain (Persian: مجمع البحرین‎, "The Confluence of the Two Seas" or "The Mingling of the Two Oceans") is a book on comparative religion authored by Mughal Shahzada Dara Shukoh as a short treatise in Persian, c. 1655. It was devoted to a revelation of the mystical and pluralistic affinities between Sufic and Vedantic speculation. It was one of the earliest works to explore both the diversity of religions and a unity of Islam and Hinduism and other religions. Its Hindi version is called Samudra Sangam Grantha and an Urdu translation titled Nūr-i-Ain was lithographed in 1872.