Last name Mc Lean (Mc Lean 
) , across the world, is quite a rare surname. The last name Mc Lean is characteristic of Latin America and the Caribbean, particularly Saint Lucia, where it is quite a common surname, Costa Rica, where it is quite a rare surname, and Trinidad and Tobago. Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Canada. Very seldom, Mc Lean is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mc Lean | Canada, United Kingdom, United States, Trinidad and Tobago, Costa Rica |