Papahagi is an Aromanian surname that may refer to:
Adrian Papahagi (born 1976), Romanian philologist, essayist and politician (1948–1999), linguist, literary critic, essayist and translator Pericle Papahagi (1872–1943), Ottoman-born Romanian literary historian and folklorist Tache Papahagi (1892–1977), Ottoman-born Romanian folklorist and linguist