How Many People Are Named Brennan?
Complete statistics for the name Brennan: rarity score, gender breakdown, age distribution, historical popularity, worldwide data, meaning and origin.
Brennan means 'brown warrior' and has a rare charm. It's estimated that 1 in 9,596 Americans today are named Brennan, totaling around 34,389 people. The majority, 72%, are under 30, making it a truly modern name.
📖 Meaning & Origin
Life path number 5 symbolizes freedom, adventure, and change.
🌍 Worldwide Usage
⚥ Gender Distribution
📊 Births by Age Group
Avg Cohort Age: 24All 35,250 recorded US births for this name, grouped by the age those individuals would be today. Not adjusted for survival, so the number living today is lower (see the living estimate above).
📈 Popularity Over Time
Peak: 2009Annual US births from SSA records · Trend: Declining
🏆 Name Scorecard
Scores 0–100 based on statistical analysis of US and worldwide name frequency
📜 Brennan Through the Generations
Brennan peaked in popularity in 2009 with 1,550 births, marking a high point in its relatively recent rise. Today, the name's bearers span across different age groups, but the bulk of them, 25,209, fall under the age of 30. This trend suggests that Brennan remains popular among younger generations, with fewer older adults carrying the name, indicating a shift towards more contemporary naming trends.
📍 State Distribution (Top 10)
⭐ Famous People Named Brennan
Brennan and Braonán are masculine given names, but Brennan can be a feminine given name. The given name Brennan is considered to be mainly an Irish or Gaelic name. The Gaelic personal name Braonán is derived from the Irish braon, meaning "drop". An alternative derivation is from the personal name Branán, a diminutive of the word bran, meaning "raven". In some cases the given name Brennan may be a contracted form of the given name Brendan.…
Full list on Wikipedia →🌿 Related Names by Origin
Other names sharing Brennan's Irish roots
📄 About the Name Brennan
How Many People Have the Name Brennan?
Based on Social Security Administration birth records and age-adjusted survival modeling, approximately 47,806 people in the United States currently share the name Brennan. That works out to roughly 1 in every 6,933 Americans, placing it in the Uncommon category.
Is Brennan a Common or Rare Name?
Brennan is classified as Uncommon. The rarity scale runs from Very Common (shared by millions) through Common, Uncommon, Rare, and Very Rare. Understanding where a name sits helps parents gauge uniqueness, genealogists narrow down records, and individuals settle debates about their own name's distinctiveness.
What Does the Name Brennan Mean?
Brennan means "brown warrior" and comes from Irish origins. The name carries a life-path numerology number of 5.
Gender Breakdown
Of all recorded bearers of Brennan in SSA data, approximately 94% are male and 6% are female.
When Was Brennan Most Popular?
The name Brennan reached peak popularity in 2009, with 1,550 babies registered that year. Current trend: Declining.
How Is This Data Calculated?
All figures are statistical estimates, not exact government headcounts. The underlying data comes from the SSA National Baby Names dataset. Full methodology is explained on the methodology page.
❓ Frequently Asked Questions
How many people are named Brennan?
Approximately 47,806 people named Brennan live in the United States today. All-time US births on record total 47,806. That works out to roughly 1 in 6,933 Americans.
Is Brennan a rare name?
Brennan is classified as Uncommon in the United States. Approximately 1 in every 6,933 Americans has this name.
What does the name Brennan mean?
Brennan means "brown warrior" and comes from Irish origins.
Is Brennan more male or female?
Based on SSA records, 94% of people named Brennan are male and 6% are female.
When was Brennan most popular?
Brennan peaked in 2009 with 1,550 births that year. Current trend: Declining.
How accurate are these statistics?
All figures are statistical estimates based on SSA birth records and age-adjusted modeling. See the methodology page for full details.