Throughout the world, Mackay-Prendergast (Mackay-Prendergast 
) is an extremely rare unknown gender given name. Much more prevalently, Mackay-Prendergast is the last name as well as the forename. Parts of the name also exists independently as a last name Mackay, and a last name Prendergast.
| VARIANT | COUNTRY |
|---|---|
| Mackay-Prendergast | United States |