Rewa Prasad Dwivedi (22 August 1935 - 21 May 2021) was a Sanskrit scholar, poet, writer, teacher, and critic. His original works include poetry as epics and lyrics, plays, and prose. He wrote new literature under the pseudonym "sanatana", meaning 'the eternal'. He is also known as 'Acharya' Dwivedi ('the scholar' or 'the expert' Dwivedi). Dwivedi's scholarship includes work on literary principles including modern theories in Sanskrit poetics and dramaturgy and preserving (editing, compiling, indexing, and republishing) the works of all major Sanskrit scholars.