The Origin and History of the Surname Kelleher

Kelleher is a surname of Irish origin. It is an anglicized form of the Gaelic name "O'Ceileachair," which means "descendant of Ceileachar," a personal name that is derived from the word "ceileachar," meaning "kind" or "hospitable."

The name Kelleher has been found in many different forms throughout history, including Kelleher, Kellher, Kelher, O'Kelleher, and O'Kellher. It is most commonly found in the province of Munster in Ireland, particularly in County Cork and County Kerry.

In the United States, the name Kelleher has been recorded as far back as the 18th century, when Irish immigrants began to arrive in large numbers. Today, it is found in many different parts of the country, particularly in areas with high concentrations of people of Irish descent.

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