Jillyan vs Jillian

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

Name A

Jillyan

Girl name

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Name B

Jillian

Girl name · Rank #1130

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Which name is more popular?

Metric Jillyan Jillian
Current Rank Unranked #1130
Total Births (all years) 291 83,197
Peak Year 1999 1982
Peak Year Births 17 3,056
Peak Decade 2000ss 1980ss
Gender Girl Girl
First Recorded Year 1978 1944

Births by Decade

Decade Jillyan Jillian
1940ss — 37
1950ss — 86
1960ss — 333
1970ss 16 4,661
1980ss 48 25,446
1990ss 66 19,725
2000ss 118 22,822
2010ss 43 8,730
2020ss — 1,357

Recent Annual Births (2014–present)

Year Jillyan Jillian
2014 6 848
2015 — 721
2016 — 602
2017 — 525
2018 — 383
2019 — 353
2020 — 267
2021 — 253
2022 — 232
2023 — 214
2024 — 214
2025 — 177

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, 1978–2014.

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