Surname Mcdonnaugh (Mcdonnaugh 
) , in the world, is a very rare last name. The last name Mcdonnaugh is characteristic of the United States, where it is an extremely rare surname, and the United Kingdom. Very seldom, Mcdonnaugh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mcdonnaugh | United Kingdom, United States |