Where my last name Quann come from?

The surname Quann is believed to have Irish origins, possibly derived from the Gaelic name "O'Cuain," meaning "descendant of Cuain," with "Cuain" translating to "swan" in English. It may also be an Anglicized form of other Gaelic surnames. In some cases, Quann may be linked to the Old Norse name "Kvan," which means "woman" or "wife." The variations in spelling and pronunciation reflect the diverse influences on Irish surnames throughout history.