Trend of the Popularity of Cillian as a Male Baby Name in the US

Updated on May 9, 2026.

Data Source: Social Security Administration (SSA).

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In 2025, there were 595 male babies that were named Cillian in the US, which was 0.04% of the total number of male babies born in the US in 2025. Between 1995 and 2025, the name Cillian peaked as a male baby name in the US in 2024 with a count of 668 babies, which was 0.04% of the total male babies born in the US in 2024.

The first chart below show the trend of the number of male babies in the US that were named Cillian, and the second chart shows the percent of male babies in the US that were named Cillian.

Trend of the Number of Male Babies who were Named Cillian in the US

Trend of the Percentage of Male Babies who were Named Cillian in the US

The table below below shows the trend of the number of male babies and the percentage of male babies born in the US who were named Cillian from 1995 to 2025.

Trend of the Popularity of Cillian as a Male Baby Name in the US

0 of 0
Year Number of Male Babies Percent of Total Male Babies (%)
1995 5 0.00
1999 5 0.00
2001 6 0.00
2004 8 0.00
2005 10 0.00
2006 42 0.00
2007 39 0.00
2008 51 0.00
2009 52 0.00
2010 54 0.00
2011 66 0.00
2012 73 0.00
2013 77 0.00
2014 87 0.01
2015 121 0.01
2016 177 0.01
2017 170 0.01
2018 193 0.01
2019 186 0.01
2020 228 0.01
2021 341 0.02
2022 353 0.02
2023 477 0.03
2024 668 0.04
2025 595 0.04