Cognomen Gregan (Gregan 
, Греган 
) , in all the world, is quite a rare family name. The cognomen Gregan is habitual in Ireland, where it is quite a rare surname, Slovakia, and New Zealand. Measured by absolute frequency, this name is the most popular in Ireland, the United States, and the United Kingdom. Much less frequently, Gregan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gregan | United Kingdom, Australia, United States, Slovakia, Ireland |
| Греган | Ukraine |
| john edgar gregan British architect (b. 1813) |
|
|
|
george gregan Australian rugby union player, AU (b. 1973) |
|
|
sean gregan English association football player (born 1974), GB (b. 1974) |
|
| ralf gregan German director and screenwriter, DE (b. 1933) |
|
|
| eugene gregan American artist, US (b. 1937) |
|
|
|
brian gregan Irish sprinter, IE (b. 1989) |
|
| mary plunkett gregan Peerage person ID=243175 |
|
|
| oliver plunkett gregan Peerage person ID=243185 |
|
|
| michael gregan Peerage person ID=514271 |
|
|
| juri gregan |
|
|
| kim oliver gregan |
|
|
| thomas j. gregan |
|
|
| sian catherine gregan (born 1996) (b. 1996) |
|
|
| aidan jack gregan (born 1998) (b. 1998) |
|
|
| juraj gregan researcher |
|