OBRIEN

American Surname Summary Data for OBRIEN

Frequency Comparisons
Total Rank Frequency % Per million people
United States
United States (Current snapshot) 115,385 234 0.043 428
United States (1880 census) 9,707 623 0.019 194
Change since 1880 +105678 +389 +0.024 +234
Other Countries
Australia 474 3368 0.003 29
United Kingdom 3,098 2006 0.007 67

Top States for OBRIEN by Total
State Total Rank in State Frequency % Per million people
New York 11,482 70 0.061 605
Massachusetts 11,042 16 0.174 1,739
California 9,551 286 0.028 282
Florida 7,472 208 0.047 468
Pennsylvania 6,236 128 0.051 508
Top States for OBRIEN by Frequency
State Total Rank in State Frequency % Per million people
Massachusetts 11,042 16 0.174 1,739
New Hampshire 1,442 42 0.117 1,167
Vermont 692 49 0.114 1,137
Rhode Island 1,002 48 0.096 956
Connecticut 3,102 47 0.091 911

Notes
  • Total is the total number of people with that surname.
  • Rank is the position in the list of names ordered by total (eg, a rank of 1 means that it's the most common name, and a rank of 10 means it's the tenth most common, etc).
  • Frequency is the percentage of people with that surname.
  • Per million people is the number of people with that surname per million of the population.

'N/A' indicates that we don't have data for this name (usually because it's quite uncommon and our stats don't go down that far). It doesn't mean that there's no-one with that name at all!

For less common surnames, the figures get progressively less reliable the fewer holders of that name there are. This data is aggregated from several public lists, and some stats are interpolated from known values. The margin of error is well over 100% at the rarest end of the table!

For less common surnames, the frequency and "per million" values may be 0 even though there are people with that name. That's because they represent less than one in a million of the population, which ends up as 0 after rounding.

It's possible for a surname to gain in rank and/or total while being less common per million people (or vice versa) as there are now more surnames in the USA as a result of immigration. In mathematical terms, the tail has got longer, with a far larger number of less common surnames.

Figures for top states show firstly the states where most people called OBRIEN live. This obviously tends to be biased towards the most populous states. The second set of figures show where people called OBRIEN represent the biggest proportion of the population. So, in this case, there are more people called OBRIEN in New York than any other state, but you are more likely to find a OBRIEN by picking someone at random in Massachusetts than anywhere else.

Similar Names

The following names have similar spellings or pronunciations as OBRIEN.

This does not necessarily imply a direct relationship between the names, but may indicate names that could be mistaken for this one when written down or misheard.

The most likely matches are shown first.

OBRYAN
OBRIAN
OBEIRNE
MCBRIEN
OBRIEN
OBYRNE
BRUEN
BREEN
BRIEN
OBRYON
OBRION
OBREIN
OBRIANT
OBIN
OBORNY
OBORNE
OBRIST
OPPERMAN
OPOIEN
OLIEN
OIEN
OHREN
OGREN
OFFERMANN
OFFERMAN
ODIEN
OREN
OBIERNE
OBIE
BRIENO
BRIEL
BRIED
BRIDEN
BRIAN
BREN
BOBZIEN
BIEN
BEIEN
BRIENT
BRIER
BRIES
OBERMANN
OBERMAN
MARIEN
KOBRIN
DOBRIN
COBRIN
BRION
BRINN
BRIN

Matches are generated automatically by a combination of Soundex, Metaphone and Levenshtein matching.

Common Misspellings and Typos

The following words are slight variants of OBRIEN that are likely to be possible typos or misspellings in written material.

OBREIN ORBIEN OBIREN BORIEN OBRIE OBRIEA OBRIENA OBRIENE OBRIENI OBRIENO