Last name Filipo-O'Brien (Filipo-O'Brien 
) , around the world, is an extremely rare cognomen. The surname Filipo-O'Brien is characteristic of Australia and New Zealand, particularly New Zealand, where it is a very rare surname. Parts of the name also exists independently as a first name Filipo, and a last name O'Brien.
| VARIANT | COUNTRY |
|---|---|
| Filipo-O'Brien | New Zealand |