Martin Oneil
There are approximately 21 people named Martin Oneil living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 16,321,635 Americans.
This estimate combines SSA birth records for the first name Martin with Census Bureau frequency data for the surname Oneil. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
21
1 in 16,321,635
Named Martin
210K
Alive today
Named Oneil
34K
Alive today
US population
343M
Denominator
Estimated living: 210K
Rarity: Common
Gender: Male
Peak year: 1963
Average age: 51
Estimated bearers: 34K
Rarity: Uncommon
Census rank: #1,220
Per 100K: 9.81
Top ancestry: White (88.0%)
First name trend
Martin: popularity over time
Year-by-year SSA birth registrations for the first name Martin. The peak year was 1963 with 6,088 births. The average person named Martin today is 51 years old.
Babies born per year
Ethnicity
Ancestry of the Oneil surname
Self-reported race and ethnicity breakdown for people with the surname Oneil, from the 2010 US Census Bureau. The largest group is White at 88.0%.
- White88.0%
- Black or African American6.5%
- Hispanic or Latino2.7%
- Two or more races1.8%
- Asian and Pacific Islander0.6%
- American Indian and Alaska Native0.5%
Methodology
How we calculated this
The first name Martin has a living-bearer frequency of 0.0614% of the US population, based on 210,454 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Oneil appears at a rate of 9.81 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0098%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 21 people with the full name Martin Oneil. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Martin
Related
Other people with the surname Oneil
FAQ
Martin Oneil: questions and answers
How many people are named Martin Oneil?
We estimate approximately 21 people in the United States share the full name Martin Oneil. That works out to about 1 in 16,321,635 Americans. This is calculated by combining the first-name frequency (0.0614%) with the surname frequency (9.81 per 100K) against the current US population.
How rare is the name Martin Oneil?
We classify Martin Oneil as "Very Rare". About 1 in 16,321,635 Americans share this exact first and last name combination.
Is Martin a male or female name?
Martin is predominantly male. Out of 316,023 total SSA registrations, 99.5% were male and 0.5% were female. See the full Martin profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.