Surname Mccarth (Mccarth 
) , throughout the world, is a very rare family name. The surname Mccarth is characteristic of Ireland, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Mccarth is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mccarth | United States, United Kingdom, Ireland, China, South Africa |