Family name Diffey (Diffey 
) , all over the world, is a rare cognomen. The family name Diffey is habitual in the United Kingdom, where it is a rare surname, Australia, and New Zealand. Not in comparison with a country's population, it most frequently occurs in the United Kingdom, the United States, and Australia. Very seldom, Diffey is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diffey | Canada, Australia, United States, United Kingdom, Democratic Republic of the Congo |
| lot diffey Australian politician (1877-1952), AU (b. 1877) |
|
|
|
leigh diffey Australian sports commentator, AU (b. 1971) |
|
| t. j. diffey (b. 1938) |
|
|
| emma diffey Peerage person ID=651401 |
|
|
| simon diffey Ph.D. Australian National University 2012 |
|
|
| douglas george diffey Peerage person ID=651402 |
|
|
| brian l diffey researcher |
|
|
| daniel s. diffey |
|