English summary: The first volume of Egyptian Hoards offers a complete list of 278 hoards containing Ptolemaic coins in gold, silver, or bronze, found in Egypt and in the sphere of influence of the Lagid kings. Forty-nine of these hoards are documented here for the first time. The volume consists predominantly of articles presenting and analyzing the new hoards, enlarged hoards, and older hoards restudied in light of recent numismatic scholarship. For the most part the articles are generously illustrated: the plates feature more than 3500 coins in color. Following in the tradition of the Inventory of Greek Coin Hoards (IGCH) and the ten volumes of Coin Hoards (CH), Egyptian Hoards I collects and analyzes the coin hoards which constitute a major contribution to the study of the monetarization of Egypt and the circulation of coinage in the country, with very important implications for our understanding of the economy of the region. French description: Le premier volume d'Egyptian Hoards offre la liste complete des 278 tresors (dont 49 inedits) composes de monnaies ptolemaiques en or, en argent et en bronze, trouves en Egypte et dans les zones d'influence des rois lagides. Outre cette liste, l'ouvrage se compose essentiellement d'articles presentant des tresors inedits, augmentes ou reedites, pour la plupart largement illustres (les planches proposent plus de 3 500 monnaies en couleur). Issu de l'heritage livre par l'Inventory of Greek Coin Hoards (IGCH) et les dix volumes des Coin Hoards (CH), le rassemblement et l'etude de ces tresors monetaires constituent un apport majeur a l'etude de la monetarisation de l'Egypte, a la circulation des monnaies dans le pays ainsi que, plus largement, a l'economie de la region.