Jac vs Jack

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

Name A

Jac

Boy name · Rank #7269

Full profile →
Name B

Jack

Boy name · Rank #15

Full profile →

Which name is more popular?

Metric Jac Jack
Current Rank #7269 #15
Total Births (all years) 600 748,131
Peak Year 1956 1927
Peak Year Births 18 12,802
Peak Decade 1950ss 1920ss
Gender Boy Boy
First Recorded Year 1915 1880

Births by Decade

Decade Jac Jack
1880ss — 2,684
1890ss — 4,635
1900ss — 9,222
1910ss 11 49,526
1920ss 30 115,983
1930ss 22 96,397
1940ss 33 73,920
1950ss 117 62,385
1960ss 77 35,590
1970ss 23 18,570
1980ss 5 15,942
1990ss 29 37,502
2000ss 98 95,508
2010ss 101 85,688
2020ss 54 44,579

Recent Annual Births (2014–present)

Year Jac Jack
2014 7 8,753
2015 8 8,513
2016 16 8,430
2017 13 8,477
2018 10 8,892
2019 10 9,402
2020 8 8,942
2021 — 9,563
2022 18 8,930
2023 17 8,710
2024 11 8,434

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, 1915–2024.

← Compare different names