Aidan or Aiden are the primary anglicisations of the Irish given name Aodhán and the Scottish Gaelic given name Aodhàn.
The name is derived from the name Aodhán, which is a pet form of Aodh. It can be used as a masculine or feminine given name. The personal name Aodh means "fiery" and was the name of a Celtic sun god (see Aed).
Formerly common only in Ireland and Scotland, the name and its variants have become popular in England, the United States, and Canada.
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