United States name statistics
Cillian in United States
Estimated bearers
4,053
Country rank
#4136
Per 100k
1
These figures are derived directly from official statistical agency data.
Gender distribution
Based on historical birth records, this name is used predominantly male.
Male 99.9%Female 0.1%
Cillian popularity by year
U.S. births per year for Cillian, 1995 to 2025 (source: SSA name files).
Show data table
- 1995: 5
- 1999: 5
- 2001: 6
- 2004: 8
- 2005: 10
- 2006: 42
- 2007: 39
- 2008: 51
- 2009: 52
- 2010: 54
- 2011: 66
- 2012: 73
- 2013: 77
- 2014: 87
- 2015: 121
- 2016: 177
- 2017: 170
- 2018: 193
- 2019: 186
- 2020: 228
- 2021: 341
- 2022: 353
- 2023: 477
- 2024: 674
- 2025: 595
Frequently asked questions
How many people are named Cillian in United States?
An estimated 4,053 people in United States are named Cillian. That works out to 1 in 81,890 residents.
Is Cillian a common name in United States?
Cillian ranks #4136 among first names in United States.