Cognomen Mcilrath (Mcilrath 
) , worldwide, is quite a rare family name. The surname Mcilrath is characteristic of the United States, where it is a rare surname, the United Kingdom, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Mcilrath | Australia, United Kingdom, United States, South Africa, Canada |
| chas. mcilrath (b. 1829) |
|
|
| william mcilrath (1876-1955) merchant and philanthropist (b. 1876) |
|
|
| patricia mcilrath American theatre director, US (b. 1917) |
|
|
|
tim mcilrath American musician, US (b. 1978) |
|
| donald christner mcilrath (b. 1929) |
|
|
|
dylan mcilrath Canadian ice hockey player, CA (b. 1992) |
|
| lesley mcilrath Australian former snooker player |
|
|
| joanne mcilrath researcher |
|