Surname 达菲 (达菲 
, Duffie 
, Duffey 
) , throughout the world, is a common family name. The surname 达菲 is characteristic of the United States, where it is quite a rare surname, Uruguay, and New Zealand. Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Canada. Much less frequently, 达菲 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 达菲 | China |
| Duffie | Australia, Canada, United Kingdom, United States, China |
| Duffey | Australia, South Africa, Canada, United Kingdom, United States |
| Duffee | South Africa, Canada, France, United Kingdom, United States |