Cecilia vs Cecily

Side-by-side comparison of Cecilia and Cecily — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Cecilia

Girl name · Rank #123

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Name B

Cecily

Girl name · Rank #1593

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Which name is more popular?

Metric Cecilia Cecily
Current Rank #123 #1593
Total Births (all years) 108,992 8,535
Peak Year 2024 1989
Peak Year Births 2,238 472
Peak Decade 2010ss 2010ss
Gender Girl Girl
First Recorded Year 1880 1911

Births by Decade

Decade Cecilia Cecily
1880ss 630 —
1890ss 1,504 —
1900ss 2,318 —
1910ss 5,705 31
1920ss 6,907 117
1930ss 5,028 168
1940ss 8,006 287
1950ss 9,983 483
1960ss 7,852 425
1970ss 5,569 882
1980ss 6,988 1,288
1990ss 10,114 1,582
2000ss 11,983 1,009
2010ss 16,150 1,632
2020ss 10,255 631

Recent Annual Births (2014–present)

Year Cecilia Cecily
2014 1,640 244
2015 1,782 214
2016 1,827 196
2017 1,815 191
2018 1,809 141
2019 1,861 160
2020 1,859 131
2021 2,095 127
2022 2,006 131
2023 2,057 111
2024 2,238 131

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1880–2024.

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