Jean de Launoy (Joannes Launoius) (21 December 1603 – 10 March 1678) was a French historian.
He was on the sceptical side over the supposed papal bull Sacratissimo uti culmine (see Sabbatine Privilege).
As an historian he developed an extreme form of criticism, pointing out the false attributions of works and the unchecked assertions of the martyrologium.
His 1641 La commentitio Lazari et Maximini, Magdalenae et Marthae in Provinciam appulsu, described the Provençal legends of Mary Magdalen as pious nonsense.
[3] In his books and letters he developed a strong and coherent form of Gallicanism, rejecting the infallibility of the Roman pontiff and professing the superiority of the general council.