Surnames like O\'Brien include alternative spellings such as Obrien, cross-language cognates including Bryant, Brennan and Bryan, others with a similar sound, like Obryan and O'Ryan, and names that share its opening sound, such as O'Gallagher, O'Moore and O'Neill.

Overall

1. Bryan (Brian)
2. Brennan
3. O'ryan
4. Obryan
5. Bryant
6. O'gallagher
7. O'moore
8. O'neill (Oneal, Oneill, O'neil, Oneil)
9. Murphy
10. Kelly

Cognates

Names with the same meaning but not necessarily in the same language or format

• Bryant
• Brennan
• Bryan, Brian

Alliterative names

Names that start with similar sounds to o\'brien

• Obryan
• O'Gallagher
• O'Moore
• O'Neill, Oneal, Oneill, O'Neil, Oneil
• O'Sullivan, Osullivan
• O'Connor, Oconnor
• O'Reilly
• O'Shea, Oshea
• O'Rourke, Orourke
• Otero

Other names that contain similar sounds

• Obryan, Obrian
• O'Ryan
• Bryan, Brian, Brion, Bryon

Names with similar tags

Tags include origins, well known people etc

• Jones
• Chavez
• Rogers
• Harrison
• Powell
• Jenkins
• Ellis
• Simpson
• Robertson
• Reynolds

Names with similar locations

Compares geographical origins and national popularity

• O'Ryan
• Mcintyre
• Brennan
• O'Donnell
• Mclean
• Bryan
• Sweeney
• Conway
• Kane
• Carey

Names popular in similar years

Looks for trends from data about name popularity across the decades

• O'Sullivan
• Ross
• Owen
• Young
• Zhang
• Murray
• Graham
• Jenkins
• O'Doherty
• Patel