The O'BRYAN surname in the USA

Frequency Comparisons
	Total	Rank	Frequency %	Per million people
United States
United States (Current snapshot)	6,192	5185	0.002	23
United States (1880 census)	462	10299	0.001	9
Change since 1880	+5730	+5114	+0.001	+14
Other Countries
Australia	12	75570	0	1
United Kingdom	14	29801	0	0

Top States for O'BRYAN by Total
State	Total	Rank in State	Frequency %	Per million people
Kentucky	1,240	499	0.031	307
California	412	6913	0.001	12
Florida	399	5148	0.002	25
Ohio	369	3902	0.003	33
Michigan	313	3952	0.003	31
Top States for O'BRYAN by Frequency
State	Total	Rank in State	Frequency %	Per million people
Kentucky	1,240	499	0.031	307
Vermont	32	3215	0.005	53
South Dakota	39	3324	0.005	52
Missouri	236	3279	0.004	42
Kansas	107	3203	0.004	40

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.

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

Classification and Origin of O'BRYAN

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 O'BRYAN 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 O'BRYAN 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 O'BRYAN in the USA

Classification	Total	Percent
White (Hispanic)	121	1.95
Black/African American	94	1.52
Mixed Race	83	1.34
Native American/Alaskan	32	0.52
Asian/Pacific	21	0.34
White (Caucasian)	5,841	94.33

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

Similar names to O'BRYAN

The following names have similar spellings or pronunciations as O'BRYAN.

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.