Grammaire égyptienne (literally: 'Egyptian Grammar') is a grammar reference book by the French Egyptologist Jean-François Champollion, published posthumously in France in 1836. Its full title, the Grammaire égyptienne ou Principes généraux de l'écriture sacrée égyptienne appliqué à la présentation de la langue parlée means Egyptian Grammar or General Principles of Egyptian Sacred Writing Applied to the Presentation of the Spoken Language.