Gabriel Cossart (22 November 1615 – 18 September 1674)[1] was a French Jesuit, known as a historian. He taught rhetoric at the College de Clermont. He was a librarian there, described as “worldly-wise”, and a promoter of the careers of his students.[2] As a scholar he collaborated with Philippe Labbe.
He engaged in controversy over Petrus Ramus with François du Monstier.[3]