Frédéric Labadie-Lagrave (August 16, 1844 – 1917) was a French physician born in the department of Lot-et-Garonne.
He studied medicine in Paris, where in 1873 he earned his doctorate. In 1879 he became médecin des hôpitaux in Paris. During the Franco-Prussian War, he was decorated on the battleground at Metz.
With Germain Sée (1818–1896), he was co-author of the multi-volume Médecine clinique. In this work he contributed treatises on urology, and diseases of the liver, kidneys and bile ducts. With Felix Legueu (1863–1940) he published an influential book on medical-surgical gynecology called Traite medico-chirurgical de gynecologie. He also contributed numerous articles to Sigismond Jaccoud's Dictionnaire de Médecin.