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The O'SHAUGHNESSY surname in the USA

Frequency Comparisons
Total Rank Frequency % Per million people
United States
United States (Current snapshot) 3,045 9806 0.001 11
United States (1880 census) 71 39721 0 1
Change since 1880 +2974 +29915 +N/A +10
Other Countries
Australia 4 159556 0 0
United Kingdom 142 20131 0 3
Top States for O'SHAUGHNESSY by Total
State Total Rank in State Frequency % Per million people
New York 450 3962 0.002 24
California 247 9792 0.001 7
Florida 227 7794 0.001 14
Massachusetts 210 3798 0.003 33
Illinois 191 6283 0.002 15
Top States for O'SHAUGHNESSY by Frequency
State Total Rank in State Frequency % Per million people
New Hampshire 68 2527 0.006 55
Massachusetts 210 3798 0.003 33
New York 450 3962 0.002 24
Delaware 18 6932 0.002 23
Connecticut 78 5429 0.002 23

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

Classification and Origin of O'SHAUGHNESSY

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'SHAUGHNESSY 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'SHAUGHNESSY 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'SHAUGHNESSY in the USA

Classification Total Percent
White (Hispanic) 32 1.05
Mixed Race 27 0.89
Asian/Pacific 16 0.53
White (Caucasian) 2,962 97.27
Black/African American Less than 100 Insignificant
Native American/Alaskan Less than 100 Insignificant

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

Meaning of O'SHAUGHNESSY in historical publications

OSHAUGHNESSY. "The O'Shanghnessys were lords of a mountainous district dividing Galway from Clare. The sept is traced however, in the annals of other parts of the country." The surname first appears in 1060. D'Alton.

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.


Similar names to O'SHAUGHNESSY

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

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 O'SHAUGHNESSY

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