Family name Mehdavi (Mehdavi 
) , globally, is a very rare surname. The cognomen Mehdavi is characteristic of Canada, where it is an extremely rare surname, the United States, and the United Kingdom. In absolute terms, it is the most numerous in the United States, India, and Canada. Much less frequently, Mehdavi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mehdavi | Canada, United Kingdom, United States, India, Turkey |