Isak is a boys' name of Hebrew origin, meaning “he laughs”, Scandinavian form of Isaac. Isak Dinesen was the pen name of Karen Blixen, the Danish author of Out of Africa.

Isak

Gender: Boy
Say it: EE-sak
Origin: Hebrew
UK rank, 2025: #1,372 for boys
US rank, 2025: #3,127 for boys

Isak is a boys' name of Hebrew origin, meaning “he laughs”. In 2025 it ranked 1,372nd for boys in the UK (21 babies) and 3,127th for boys in the US (38 babies).

What does Isak mean?

Hebrew: Scandinavian form of Isaac

“he laughs”

Isak Dinesen was the pen name of Karen Blixen, the Danish author of Out of Africa.

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

Isak is a boys' name. In 2025, it was given to 21 boys in the UK and 38 boys in the US. Too few girls were given it to be listed.

How popular is Isak in the UK?

Rank in 2025: #1,372among boys
Babies in 2025: 21about 1 in 14,000 boys
Five-year trend: Rising fastup 162% in five years
Same name in a class: under 1%chance among 15 boys

In 2025, 21 boys in the UK were named Isak, making it the 1,372nd most popular name for boys. Five years earlier, in 2020, it was 2,562nd.

2025 had the most boys named Isak of any year since it first appeared, in 1998.

Half of all the boys named Isak in the UK since 1996 were born between 2008 and 2023, the years shaded on the chart below.

Among boys in 2025, it was 1,306th in England and Wales.

1998Busiest: 21 in 20252025

Isak in the UK, year by year

Year	Boys	Rank
2025	21	#1,372
2024	17	#1,585
2023	17	#1,571
2022	5	#3,639
2021	5	#3,614
2020	8	#2,562
2019	9	#2,399
2018	4	#4,169
2017	11	#2,174
2016	5	#3,655
2015	4	#4,086
2014	5	#3,529
2013	9	#2,334
2012	7	#2,849
2011	7	#2,736
2010	6	#3,092
2009	9	#2,241
2008	6	#2,906
2007	16	#1,458
2006	4	#3,522
2005	6	#2,545
2004	0	–
2003	3	#3,593
2002	5	#2,358
2001	6	#2,049
2000	3	#3,146
1999	0	–
1998	4	#2,531

How popular is Isak in the US?

Rank in 2025: #3,127among boys
Babies in 2025: 38about 1 in 45,000 boys
Five-year trend: Risingup 27% in five years
Same name in a class: under 1%chance among 15 boys

In 2025, 38 boys in the US were named Isak, making it the 3,127th most popular name for boys. Five years earlier, in 2020, it was 4,137th. Its busiest year was 2004, with 57 boys. It first appears in the records in 1979.

2025 had more boys named Isak than any year since 2010.

Half of all the boys named Isak in the US since 1880 were born between 2002 and 2015, the years shaded on the chart below.

1979Busiest: 57 in 20042025

Isak in the US, year by year

Year	Boys	Rank
2025	38	#3,127
2024	26	#4,069
2023	29	#3,799
2022	14	#6,141
2021	23	#4,358
2020	24	#4,137
2019	18	#5,149
2018	31	#3,520
2017	34	#3,310
2016	26	#3,989
2015	34	#3,298
2014	27	#3,784
2013	17	#5,167
2012	31	#3,447
2011	30	#3,509
2010	51	#2,428
2009	37	#3,104
2008	42	#2,827
2007	52	#2,442
2006	57	#2,220
2005	55	#2,178
2004	57	#2,071
2003	39	#2,575
2002	39	#2,500
2001	26	#3,316
2000	29	#2,987
1999	28	#2,935
1998	20	#3,593
1997	26	#2,899
1996	25	#2,906
1995	21	#3,186
1994	18	#3,590
1993	12	#4,690
1992	7	#6,662
1991	11	#4,752
1990	7	#6,408
1989	5	#7,898
1988	10	#4,445
1987	7	#5,453
1986	8	#4,848
1985	0	–
1984	0	–
1983	5	#6,234
1982	0	–
1981	0	–
1980	5	#6,248
1979	6	#5,353

Names like Isak

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

Ibrahim Musa Muhammad Hamza Ahmed Abdullah Yusuf Umar Zakariya Mustafa Yahya Amir

Names related to Isak

Isaak Isac Issak Isack Isaack

More Hebrew names

Noah Isabella Elijah James Jack Mia Ava Jude Ezra Benjamin Isaac Jacob Ethan Daniel Samuel Elias

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, “Isak: name meaning, origin and popularity”, https://www.nameling.co.uk/names/isak, updated 20 October 2026.