Family name Kilroe (Kilroe 
) , in the entire world, is a rare last name. The cognomen Kilroe is characteristic of Ireland, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and South Africa. In absolute terms, it most frequently occurs in the United Kingdom, South Africa, and the United States. Much less frequently, Kilroe is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kilroe | South Africa, Canada, Ireland, United Kingdom, United States |