as a Last Name
- 30,794
- people in the U.S. have this name View all people named Costello
Meaning & Origins
Irish: reduced Anglicized form of Gaelic Mac Oisdealbhaigh ‘son of Oisdealbhach’, a personal name composed of the elements os ‘deer’, ‘fawn’ + dealbhach ‘in the form of’, ‘resembling’.
| 977th in the U.S. for 2011 |
Nicknames & variations
Quick facts
- Tens of Thousands
- of people in the U.S have this name
- 30,794
- to be exact (as of February 2011)
- Massachusetts
- has the most people named Costello per capita
Top state populations
U.S. Distribution Map
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