Cognomen محمدى (Mohammadi 
, محمدى 
) , around the world, is a widespread surname. The surname محمدى is habitual in Afghanistan, where it is a common surname, Iran, where it is quite a common surname, and United Arab Emirates. Measured by absolute frequency, it is commonest in Afghanistan, Iran, and Egypt. Much less frequently, محمدى is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mohammadi | Iran, Morocco, Pakistan, India, Afghanistan |
| محمدى | Egypt, Sudan, Afghanistan, Saudi Arabia, Algeria |