Robert Flacelière (French: [flaslj??]; 29 May 1904, Paris – 23 May 1982, Montpellier) was a scholar of Classical Greek.
He was educated at the Collège Sainte-Barbe, the Lycée Henri IV and the École Normale Supérieure.
From 1925 to 1930, he was a member of the French School in Athens and from 1932-1948 a Professor of the Faculty of Letters at University of Lyon.
He was then appointed to the Chair of Greek Language and Literature at the University of Paris, a post he held until 1963 when he was appointed Director of the École Normale Supérieure.