Last name Mickay (Mickay 
) , around the world, is a very rare family name. The cognomen Mickay is characteristic of the United Kingdom, where it is an extremely rare surname, South Africa, and Argentina. Measured by absolute frequency, it most frequently occurs in the United Kingdom, the United States, and South Africa. More frequently, Mickay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mickay | Philippines, United Kingdom, South Africa, India, United States |