Given name & surname
Isac
“full of laughter”
Isac is a variant of Isaac. One Hebrew interpretation is “full of laughter.”
Meaning & origin
What it means
Isac is a variant of Isaac. One Hebrew interpretation is “full of laughter.”
Explained through its name family
Where it comes from
Isac is a variant of Isaac. An origin associated with Isaac is Hebrew.
Explained through its name family
The story
Published U.S. birth records include this spelling as early as 1884. This is the earliest published observation available here, rather than a date for the name’s origin. Isac is a variant of Isaac. The history of Isaac gives this family its wider story. In biblical tradition, Isaac is the name of the son of Abraham.
Combines direct and name-family evidence
Isac through the years
- Babies since 1880
- 3,203
- 3,203 boys · 0 girls
- Most popular year
- 2006
- 148 babies
- 2025
- 22
- #4,600 for boys
- 2021–25 vs 2016–20
- −18%
- Easing
Where it’s given
By the numbers
In 2025, this name appeared in 22 U.S. birth records for boys, ranking No. 4,600 among boys’ names. Average annual use for boys was 18.2% lower in 2021–2025 than in 2016–2020. Its largest published annual count for boys was 148 in 2006. In 2025, California had the largest reported state-level birth count for boys with this name (5). Published U.S. population figures for this spelling include 3,420 as a first name in 2020; 186 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Isac’s family of names
Isac has a related form in Isaac. In Romanian usage, Isac has a conventional equivalent in the German form Isaak. In German usage, Isac as a surname has a related form in Isaak.
Inner ring: nicknames and forms · outer: across languages.
Nicknames & forms 3
Diminutives, pet forms, short forms and variants used alongside the name.
Across languages 11
Equivalents and cognates in other languages, plus older forms it grew from.
- Issacequivalent
- Izaakequivalent
- Izaacequivalent
- Isakequivalent
- Izakequivalent
- Yitzhakequivalent
- Isaccoequivalent
- Izsákequivalent
Show 3 moreShow fewer
People named Isac
- Isac ElliotFinnish pop singer, songwriter, dancer and actorborn 2000
- Isac Lidbergassociation football playerborn 1998
- Isac SantosBrazilian volleyball playerborn 1990
- Isacfootballerborn 1985
- Isac PeltzRomanian journalist1899–1980
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Isac, these share its style, era, origin or sound, from outside its own family.
Abran
“father of a multitude (of nations)” · “father of a multitude; father of nations”
>99% boys
Ab
“father of light” · “father of the light”
>99% boys
Efren
“one who is tertile; productive”
>99% boys
Javan
“mire” · “mud man”
>99% boys
Elnathan
“God has given”
>99% boys
Adan
“man” · “of the earth”
99% boys · 1% girls
Isaiah
“God is salvation” · “God is my salvation”
>99% boys
Avel
“the life force; breath”
>99% boys