Isac is a boys' name of Hebrew origin, meaning “he will laugh”, spelling of Isaac. Isaac, son of Abraham and Sarah, was named for Sarah's laughter on hearing she would bear a child.

Isac

Gender: Boy
Say it: EYE-zak
Origin: Hebrew
UK rank, 2025: #2,511 for boys
US rank, 2025: #4,538 for boys

Isac is a boys' name of Hebrew origin, meaning “he will laugh”. In 2025 it ranked 2,511th for boys in the UK (9 babies) and 4,538th for boys in the US (22 babies).

What does Isac mean?

Hebrew: spelling of Isaac

“he will laugh”

Isaac, son of Abraham and Sarah, was named for Sarah's laughter on hearing she would bear a child.

Is Isac a girl's or a boy's name?

Isac is a boys' name. In 2025, it was given to 9 boys in the UK and 22 boys in the US. Too few girls were given it to be listed.

How popular is Isac in the UK?

Rank in 2025: #2,511among boys
Babies in 2025: 9about 1 in 33,000 boys
Five-year trend: Steadyup 8% in five years
Same name in a class: under 1%chance among 15 boys

In 2025, 9 boys in the UK were named Isac, making it the 2,511th most popular name for boys. Five years earlier, in 2020, it was 2,819th. Its busiest year was 2011, with 13 boys.

Half of all the boys named Isac in the UK since 1996 were born between 2011 and 2020, the years shaded on the chart below.

In 2025, 1,579 boys in the UK were given Isac or a name that sounds the same. With every name's spellings counted this way, that ranks #31, up from #2,511 for this spelling alone.

Isaac 1,463
Issac 61
Isaak 12
Izaac 11
Izaak 11
Izak 9
Isac 9
Izack 3

Among boys in 2025, it was 3,239th in England and Wales and 762nd in Scotland.

2004Busiest: 13 in 20112025

Isac in the UK, year by year

Year	Boys	Rank
2025	9	#2,511
2024	10	#2,328
2023	7	#2,965
2022	0	–
2021	11	#2,100
2020	7	#2,819
2019	7	#2,878
2018	10	#2,234
2017	8	#2,656
2016	5	#3,655
2015	8	#2,614
2014	4	#4,063
2013	11	#2,033
2012	6	#3,167
2011	13	#1,788
2010	4	#4,026
2009	11	#1,959
2008	7	#2,616
2007	0	–
2006	4	#3,522
2005	3	#3,992
2004	4	#3,147

How popular is Isac in the US?

Rank in 2025: #4,538among boys
Babies in 2025: 22about 1 in 78,000 boys
Five-year trend: Steadydown 17% in five years
Same name in a class: under 1%chance among 15 boys

In 2025, 22 boys in the US were named Isac, making it the 4,538th most popular name for boys. Five years earlier, in 2020, it was 3,731st. Its busiest year was 2006, with 148 boys. It first appears in the records in 1884.

Half of all the boys named Isac in the US since 1880 were born between 1992 and 2009, the years shaded on the chart below.

In 2025, 6,428 boys in the US were given Isac or a name that sounds the same. With every name's spellings counted this way, that ranks #47, up from #4,538 for this spelling alone.

Isaac 5,953
Issac 258
Isaak 48
Izaac 44
Izaak 41
Izak 23
Isac 22
Isacc 10

1884Busiest: 148 in 20062025

Isac in the US, year by year

Year	Boys	Rank
2025	22	#4,538
2024	26	#4,069
2023	19	#5,070
2022	30	#3,689
2021	33	#3,424
2020	28	#3,731
2019	27	#3,896
2018	26	#3,989
2017	39	#3,005
2016	39	#2,992
2015	42	#2,808
2014	62	#2,173
2013	75	#1,877
2012	73	#1,941
2011	92	#1,644
2010	102	#1,558
2009	111	#1,496
2008	123	#1,380
2007	138	#1,272
2006	148	#1,144
2005	142	#1,138
2004	126	#1,204
2003	127	#1,172
2002	96	#1,369
2001	120	#1,149
2000	79	#1,510
1999	88	#1,353
1998	81	#1,403
1997	68	#1,516
1996	62	#1,583
1995	56	#1,618
1994	48	#1,790
1993	38	#2,086
1992	39	#1,997
1991	31	#2,289
1990	32	#2,209
1989	21	#2,896
1988	22	#2,594
1987	20	#2,637
1986	18	#2,776
1985	21	#2,426
1984	15	#2,955
1983	17	#2,675
1982	20	#2,425
1981	18	#2,568
1980	20	#2,443
1979	7	#4,840
1978	8	#4,155
1977	9	#3,834
1976	10	#3,469
1975	6	#4,795
1974	7	#4,188
1973	9	#3,443
1972	0	–
1971	5	#4,905
1970	0	–
1969	0	–
1968	5	#4,135
1967	0	–
1966	5	#3,946
1965	6	#3,535
1964	0	–
1963	0	–
1962	5	#4,031
1961	0	–
1960	0	–
1959	0	–
1958	0	–
1957	0	–
1956	7	#3,214
1955	0	–
1954	0	–
1953	0	–
1952	0	–
1951	0	–
1950	5	#3,678
1949	0	–
1948	0	–
1947	5	#3,731
1946	0	–
1945	0	–
1944	0	–
1943	7	#2,962
1942	5	#3,559
1941	5	#3,504
1940	0	–
1939	5	#3,479
1938	7	#2,868
1937	7	#2,905
1936	6	#3,146
1935	12	#2,127
1934	0	–
1933	8	#2,737
1932	13	#2,101
1931	12	#2,207
1930	11	#2,443
1929	19	#1,731
1928	15	#2,048
1927	14	#2,193
1926	13	#2,302
1925	13	#2,312
1924	12	#2,473
1923	12	#2,445
1922	14	#2,239
1921	20	#1,766
1920	13	#2,335
1919	16	#1,972
1918	19	#1,766
1917	14	#2,090
1916	17	#1,770
1915	21	#1,504
1914	11	#1,974
1913	10	#1,802
1912	9	#1,745
1911	5	#1,739
1910	10	#1,044
1909	5	#1,439
1908	7	#1,112
1907	0	–
1906	6	#1,110
1905	5	#1,232
1904	0	–
1903	5	#1,129
1902	5	#1,136
1901	0	–
1900	0	–
1899	5	#1,050
1898	0	–
1897	0	–
1896	0	–
1895	0	–
1894	0	–
1893	0	–
1892	6	#955
1891	0	–
1890	0	–
1889	0	–
1888	0	–
1887	0	–
1886	0	–
1885	0	–
1884	5	#971

Names like Isac

Names given in the same years and the same naming tradition, with a similar sound.

Noah Caleb Isaiah Eli Elijah Jacob Jonah Levi Austin Ezra Elias Axel

Other spellings of Isac

Isaac Issac Isaak Izaac Izaak Izak Izack Isacc Izac Izek Issak

Names related to Isac

Isak Isack Isaack Isaic

More Hebrew names

Isabella James Jack Mia Ava Jude Benjamin Ethan Daniel Samuel Mateo Elsie Eliana Joseph Adam Michael

Every Hebrew name

Sources

Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Isac: name meaning, origin and popularity”, https://www.nameling.co.uk/names/isac, updated 20 October 2026.