Cillian
285
Babies in 2024
+332%
10-year change
2024
Peak · 285
+18%
vs 2023
Trajectory · 1996→2024
Years with no bar had fewer than 3 babies with this name — ONS suppresses counts of 2 or fewer for privacy.
About the name Cillian
Cillian is a rising UK boy's name. Registrations in 2024 (285) are up 332% on a decade earlier — one of the steeper climbs in the ONS data for England & Wales.
Cillian reached its peak in 2024, when 285 boys were registered in England & Wales — ranked #177 for UK boys that year. Today's count of 285 represents 100% of the peak.
Across 29 years of ONS data since 1996, a total of 2,306 boys have been officially registered with the name Cillian in England & Wales. In the past decade alone (2014–2024), 1,955 boys were registered with the name, starting from 66 in 2014 and ending at 285 in 2024.