Surname Mcknight-Smith (Mcknight-Smith 
) , worldwide, is an extremely rare last name. The family name Mcknight-Smith is characteristic of the United Kingdom, where it is an extremely rare surname, and the United States. Parts of the name also exists independently as a last name Mcknight, and a last name Smith.
| VARIANT | COUNTRY |
|---|---|
| Mcknight-Smith | United States, United Kingdom |