Callaham is used as a family name or surname in Ireland. It is 8 characters long in length.
Callaham is the form of the O'Callaghan. This ancient family derive their origin and their surname from Ceallachan Cathel, a famous king of Munster in the tenth century. Their territory, according to historian D'Alton, was partly in counties Louth and Mayo, but especially in Cork, where 50,000 acres of land on both sides of the Blackwater, and hence called Pobble-O'Callaghan, were occupied by them.
The Callaham is a form of Callaghan. The Irish O'Callaghan.
Callaham is the variant of Callahan. Grandson of little Ceallach meaning "contention".
Callaham is variant of O'Callaghan. Grandson of little Ceallach meaning "war or strife".
How popular is Callaham?
As per 2010 US census, number of Callahams grew by 8.58 per cent to 1266 since 2000 and ranked 20843 after elevating 161 spots. The last name was found in around 4 per million population. Please refer to following table for race and ethnicity.
| Race | 2010 | 2000 |
|---|---|---|
| White | 61.3 | 65.69 |
| Black | 34.12 | 30.79 |