Elvis Costello | Abbott and Costello | Lou Costello | The Abbott and Costello Show | William "Billy" Costello | Lordship and Barony of Hailes | Peter Costello | Maurice Costello | Frank Costello | Victor Costello | Thomas Joseph Costello | Thomas Costello | Pump It Up (Elvis Costello song) | Les Costello | Brutal Youth (Elvis Costello album) | Abbott and Costello Go to Mars | William Costello Kennedy | Thomas W. Costello | Thomas Moore Costello | The World of Abbott and Costello | Mike Costello | Michael Costello (Australian public servant) | Michael Costello | Michael A. Costello | List of townlands of the barony of Duhallow in County Cork | Larry Costello | John A. Costello | Jerry Costello | Hobcaw Barony | Elvis costello |
The closest parallels to other gaelicised Norman names in baronies would be Bharóideach (Barretts) and Choistealach (Costello).