Meaning & origin
The story
Published U.S. birth records include this spelling as early as 1915. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Jac through the years
- Babies since 1880
- 615
- 615 boys · 0 girls
- Most popular year
- 1956
- 18 babies
- 2025
- 15
- #5,967 for boys
- 2021–25 vs 2016–20
- +7%
- Steady
By the numbers
In 2025, this name appeared in 15 U.S. birth records for boys, ranking No. 5,967 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison. Published U.S. population figures for this spelling include 1,084 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Jac’s family of names
In Welsh usage, Jac was borrowed from the English form Jack. In Welsh usage, Jac has a conventional equivalent in the English form Johnny. In French usage, Jac has a related form in Jacques.
Inner ring: spellings · middle: nicknames and forms · outer: across languages.
Nicknames & forms 1
Diminutives, pet forms, short forms and variants used alongside the name.
Spellings & scripts 1
The same name written differently, including transliterations into other scripts.
Across languages 3
Equivalents and cognates in other languages, plus older forms it grew from.
People named Jac
- Jac MorganWelsh rugby union playerborn 2000
- Jac. van GinnekenProfessor, linguist, priest and Jesuit (1877–1945)
- Jac JacobsenNorwegian designer (1901–1996)
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Jac, these share its style, era, origin or sound, from outside its own family.
Jim
“he who supplants” · “heel grabber”
>99% boys
Al
“one who counsels the elves” · “one who is noble and bright”
>99% boys
Rick
“a powerful ruler”
>99% boys
Hal
“the ruler of the house” · “home”
>99% boys
Gale
“a foreigner” · “one who is cheerful”
85% boys · 15% girls
Kemp
“the champion”
>99% boys
Brad
“one who has broad shoulders”
>99% boys
Ladd
“a servant; a young man”
>99% boys