Monseigneur (plural: Messeigneurs or Monseigneurs) is an honorific in the French language, abbreviated Mgr., Msgr.[1] In English use it is a title before the name of a French prelate, a member of a royal family or other dignitary.
Monsignor is both a title and an honorific in the Roman Catholic Church.[2] In francophone countries, it is rendered Monseigneur, and this spelling is also commonly encountered in Canadian English practice. In France, monsignori are not usually addressed as monseigneur, but by the more common term monsieur l'abbé, as are priests.