Mamang Dai (Assamese: মামাং দাই) is an Indian journalist, author, poet, and former civil servant based in Itanagar, Arunachal Pradesh.
Mamang Dai's first collection of poetry, River Poems, introduced by Keki Daruwalla established her as a major voice in Indian English Literature and Literature from North East India.
She is also the author of Arunachal Pradesh: The Hidden Land.