The history of your name

The OBRIAN surname in the USA

Frequency Comparisons
Total Rank Frequency % Per million people
United States
United States (Current snapshot) 3,326 9036 0.001 12
United States (1880 census) 1,899 3117 0.004 38
Change since 1880 +1427 -5919 -0.003 -26
Other Countries
Australia 3 207723 0 0
United Kingdom 47 26316 0 1
Top States for OBRIAN by Total
State Total Rank in State Frequency % Per million people
Florida 355 6547 0.002 22
New York 295 7774 0.002 16
California 232 12818 0.001 7
Texas 221 9542 0.001 11
Indiana 192 4771 0.003 32
Top States for OBRIAN by Frequency
State Total Rank in State Frequency % Per million people
Delaware 27 5942 0.003 34
Indiana 192 4771 0.003 32
Montana 27 6260 0.003 30
Mississippi 66 4886 0.002 23
Florida 355 6547 0.002 22

Notes

'A figure of zero 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 OBRIAN live. This obviously tends to be biased towards the most populous states. The second set of figures show where people called OBRIAN represent the biggest proportion of the population. So, in this case, there are more people called OBRIAN in Florida than any other state, but you are more likely to find a OBRIAN by picking someone at random in Delaware than anywhere else.

Classification and Origin of OBRIAN

Region of origin: British Isles

Country of origin: Ireland

Language of origin: Gaelic

Ethnic origin: Celtic

Religious origin: Christian

Name derivation: From name of parent

Data for religion and/or language relates to the culture in which the OBRIAN surname originated. It does not necessarily have any correlation with the language spoken, or religion practised, by the majority of current American citizens with that name.

Data for ethnic origin relates to the region and country in which the OBRIAN surname originated. It does not necessarily have any correlation with the ethnicity of the majority of current American citizens with that name.

Ethnic distribution of OBRIAN in the USA

Classification Total Percent
White (Hispanic) 83 2.5
Black/African American 79 2.38
Mixed Race 46 1.38
Asian/Pacific 14 0.42
Native American/Alaskan 11 0.33
White (Caucasian) 3,093 92.99

Ethnic distribution data shows the number and percentage of people with the OBRIAN surname who reported their ethnic background as being in these broad categories in the most recent national census.

Meaning of OBRIAN in historical publications

Sorry, we don't have any information on the meaning of OBRIAN.

Similar names to OBRIAN

The following names have similar spellings or pronunciations as OBRIAN.

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.

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

Potential typos for OBRIAN

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