Surname Mcaster (Mcaster 
) , all over the world, is a very rare family name. The family name Mcaster is characteristic of New Zealand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Mcaster is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mcaster | New Zealand, United States |