Llewelyn vs Llewellyn

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

Name A

Llewelyn

Boy name · Rank #4430

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Name B

Llewellyn

Boy name · Rank #6450

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Which name is more popular?

Metric Llewelyn Llewellyn
Current Rank #4430 #6450
Total Births (all years) 160 3,398
Peak Year 2024 1916
Peak Year Births 23 69
Peak Decade 2020ss 1920ss
Gender Boy Boy
First Recorded Year 1916 1880

Births by Decade

Decade Llewelyn Llewellyn
1880ss — 72
1890ss — 84
1900ss — 64
1910ss 13 452
1920ss 20 566
1930ss — 407
1940ss — 369
1950ss 22 421
1960ss 7 326
1970ss 15 232
1980ss — 159
1990ss — 73
2000ss — 36
2010ss 18 81
2020ss 65 56

Recent Annual Births (2014–present)

Year Llewelyn Llewellyn
2014 — 7
2015 5 8
2016 — 7
2017 — 10
2018 6 7
2019 7 8
2020 6 13
2021 10 13
2022 13 7
2023 13 10
2024 23 13

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, 1916–2024.

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