Family name Mcclain-Lewis (Mcclain-Lewis 
) , in the entire world, is an extremely rare surname. The family name Mcclain-Lewis is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Mcclain, and a last name Lewis.
| VARIANT | COUNTRY |
|---|---|
| Mcclain-Lewis | United States |