How Many People Are Named Cillian?

Complete statistics for the name Cillian: rarity score, gender breakdown, age distribution, historical popularity, worldwide data, meaning and origin.

Cillian
Very Rare
Irish

Cillian, a very rare male name, is held by just 1 in 95,228 Americans today, making it truly unique. With only 3,465 people named Cillian living in the US, it's a name that stands out. Its peak popularity in 2024 shows it's gaining traction among younger parents.

~3,465
Living in US
1 in 95,228
Americans
2024
Peak Year

📖 Meaning & Origin

💬
Meaning
Irish warrior
🌐
Origin
Irish
🌟
Lucky Day
Friday
💎
Lucky Stone
Amethyst
🔢
Numerology
Life Path 33
Personality Traits
Brave Determined Strong
33
Life Path Number

Life-path number 33 symbolizes a person with great spiritual insight and a natural ability to inspire others.

🌍 Worldwide Usage

3,518
Worldwide Bearers
#308,550
Global Rank
🇺🇸 United States
3,465
🇧🇪 Belgium
6
🇨🇳 China
6
🇫🇷 France
5
🇬🇭 Ghana
4
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales
3
🇩🇪 Germany
3
🇳🇬 Nigeria
2
🇷🇺 Russia
2
🇺🇬 Uganda
2

⚥ Gender Distribution

♂ Male
3,459 (100%)
♀ Female
6 (0%)

📊 Births by Age Group

Avg Cohort Age: 7
3,487
Would be under 30 (100%)
5
Would be 30–60 (0%)
0
Would be over 60 (0%)

All 3,492 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: 2024

Annual US births from SSA records  ·  Trend: Rising

🏆 Name Scorecard

Popularity
94
Classic Feel
6
Modern Appeal
100
International
5

Scores 0–100 based on statistical analysis of US and worldwide name frequency

📜 Cillian Through the Generations

Cillian's journey through the generations reveals a name that's firmly rooted in modern times. Born in 2024, it saw its highest birth rate with 674 babies that year, marking a significant rise in popularity. Today, the majority of those named Cillian are under 30, indicating that it's a genuinely contemporary choice. The average age of 7 further underscores its status as a name embraced by new generations.

📍 State Distribution (Top 10)

New York 344
California 325
Massachusetts 195
Texas 180
Pennsylvania 169
Illinois 162
Florida 134
Ohio 110
New Jersey 90
Washington 83

✨ Similar Names to Cillian

🌿 Related Names by Origin

Other names sharing Cillian's Irish roots

📄 About the Name Cillian

How Many People Have the Name Cillian?

Based on Social Security Administration birth records and age-adjusted survival modeling, approximately 3,465 people in the United States currently share the name Cillian. That works out to roughly 1 in every 95,228 Americans, placing it in the Very Rare category.

Is Cillian a Common or Rare Name?

Cillian is classified as Very Rare. 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 Cillian Mean?

Cillian means "Irish warrior" and comes from Irish origins. The name carries a life-path numerology number of 33.

Gender Breakdown

Of all recorded bearers of Cillian in SSA data, approximately 100% are male and 0% are female.

When Was Cillian Most Popular?

The name Cillian reached peak popularity in 2024, with 674 babies registered that year. Current trend: Rising.

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 Cillian?

Approximately 3,465 people named Cillian live in the United States today. All-time US births on record total 3,492. That works out to roughly 1 in 95,228 Americans.

Is Cillian a rare name?

Cillian is classified as Very Rare in the United States. Approximately 1 in every 95,228 Americans has this name.

What does the name Cillian mean?

Cillian means "Irish warrior" and comes from Irish origins.

Is Cillian more male or female?

Based on SSA records, 100% of people named Cillian are male and 0% are female.

When was Cillian most popular?

Cillian peaked in 2024 with 674 births that year. Current trend: Rising.

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.

Disclaimer: All results are statistical estimates based on aggregated SSA birth records and modeling. Not exact counts of individuals. Data source: SSA National Baby Names dataset.
Quick Stats
Living in US3,465
All-Time Births3,492
1 in X1 in 95,228
RarityVery Rare
GenderMale
Avg Age7
Peak Year2024
World Rank#308,550
Male %100%
Female %0%

Check the statistics for any first or last name

Search Names
Data Source

Powered by the SSA National Baby Names dataset, birth registrations from 1880 to present.

All counts are statistical estimates. See the methodology page.