as a Last Name
- 35,054
- people in the U.S. have this name Get contact details for 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’.
| 1,004th in the U.S. for 2011 |
Nicknames & variations
Quick facts
- Tens of Thousands
- of people in the U.S have this name
- 35,054
- to be exact (as of February 2011)
- Massachusetts
- has the most people named Costello per capita
Top state populations
U.S. Distribution Map
