This article examines the communications function in Canadian government using the results of a pilot study on the governments of Canada, Ontario and the City of Toronto. It first defines what government communication is, explains what activities are included within the function, and then explains how and for what purposes government communications are used. It also provides a high-level overview of how communications within the federal, provincial and municipal governments are managed and administered. The article concludes with some observations about the nature of government communications in Canada and thoughts about future research in the area. Sommaire : Cet article examine la fonction de communication au sein du gouvernement canadien en se fondant sur les résultats d'une étude pilote sur les gouvernements du Canada, de l'Ontario et de la Ville de Toronto. Il définit tout d'abord en quoi consiste la communication gouvernementale, démontre quelles sont les activités que comporte cette fonction, puis explique comment est utilisée la communication gouvernementale et à quelles fins. L'article offre également un aperçu de haut niveau sur la manière dont on gère et administre les communications au sein du gouvernement fédéral et des gouvernements provinciaux et municipaux. En conclusion, l'article présente certaines observations sur la nature de la communication gouvernementale au Canada et des suggestions de recherche future dans le domaine.Canadian governments spend hundreds of millions of dollars each year trying to understand and communicate with a broad range of internal, domestic and international audiences. They employ thousands of specially trained communications professionals, use a variety of short-, mediumand long-term strategies and processes to establish communications objectives, apply a vast array of tactics (news releases, stakeholder consultations, polling, branding, advertising) to achieve those objectives, and operate highly complex monitoring systems in all media (print, broadcast, electronic) to evaluate whether those objectives are being achieved. The modern communications enterprise pervades every aspect of government activity today, from policy-and decision-making to service delivery, to the point that "the management of the state's communication may even rival Ted Glenn is professor, The Business School, Humber College, Toronto, Ontario.