Cognomen Mc Keown (Mc Keown 
) , in the world, is a rare family name. The family name Mc Keown is habitual in Ireland, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Canada, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Ireland, the United States, and the United Kingdom. Very seldom, Mc Keown is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mc Keown | Canada, United Kingdom, United States, Ireland, Australia |