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Top Surnames

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  • Frank Costello (1891 - 1973)
    Overview Frank Costello was a New York City gangster who rose to the top of America's underworld, controlled a vast gambling empire across the United States and enjoyed political influence. Nicknam...
  • Ryan Costello, U.S. Congress
    Ryan A. Costello (born September 7, 1976) is an American lawyer and politician from the state of Pennsylvania. From 2011 until 2015, he served on the Chester County Board of Commissioners, and as chair...

Research into the Costello branch of the family tree.

The surname comes from two sources:

  • The descendants of Jocelyn de Angulo, a Norman lord with holdings in Ireland, who took the surname Mac Goisdealbhaigh, a Gaelic rendering of Sons of Jocelyn.
  • The anglicisation of a number of Italian surnames, like Costa, Castiglia, Cristillo, etc.

Notable Costellos

Further Reading