Given name & surname
Joslin
“God shall add”·“from the tribe of Gauts”·“one who is cheerful, happy”
Joslin is a variant of Joseph. Yosef means “God shall add,” traditionally understood as a hope that God would add another son to the family. Joslin is a variant of Jocelyn. Interpretations include “from the tribe of Gauts” and “one who is cheerful, happy”. These belong to different or overlapping naming contexts.
Meaning & origin
What it means
Joslin is a variant of Joseph. Yosef means “God shall add,” traditionally understood as a hope that God would add another son to the family. Joslin is a variant of Jocelyn. Interpretations include “from the tribe of Gauts” and “one who is cheerful, happy”. These belong to different or overlapping naming contexts.
Explained through its name family
Where it comes from
Joslin is a variant of Joseph. Joseph is the English and French form of the Hebrew name Yosef.
Explained through its name family
How it developed
In English usage, Joslin as a surname developed from JOSSE. Joslin is a variant of Joseph. The shared background comes through Joseph: The English and French name continues the biblical Hebrew form Yosef. The idea of adding is part of the name’s original family context, rather than a later personality interpretation.
Combines direct and name-family evidence
The story
Published U.S. birth records include this spelling as early as 1951. This is the earliest published observation available here, rather than a date for the name’s origin. Joslin is a variant of Joseph. The history of Joseph gives this family its wider story. In Genesis, Joseph is Jacob’s son who is taken to Egypt and later reconciled with his brothers. In the New Testament, Joseph is also the husband of Mary, giving the name a distinct place in Christian tradition.
Combines direct and name-family evidence
Joslin through the years
- Babies since 1880
- 1,416
- 10 boys · 1,406 girls
- Most popular year
- 2010
- 67 babies
- 2025
- 5
- #15,988 for girls
- 2021–25 vs 2016–20
- −49%
- Cooling
By the numbers
In 2025, this name appeared in 5 U.S. birth records for girls, ranking No. 15,988 among girls’ names. Average annual use for girls was 49.5% lower in 2021–2025 than in 2016–2020. Its largest published annual count for girls was 67 in 2010. Published U.S. population figures for this spelling include 1,459 as a first name in 2020; 6,407 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.
Joslin’s family of names
In English usage, Joslin as a surname developed from the French form JOSSE. Joslin has a related form in Joseph. Joslin has a related form in Jocelyn.
Inner ring: nicknames and forms · outer: across languages.
Nicknames & forms 5
Diminutives, pet forms, short forms and variants used alongside the name.
Across languages 4
Equivalents and cognates in other languages, plus older forms it grew from.
Similar names
If you love Joslin, these share its style, era, origin or sound, from outside its own family.
Josslin
“God shall add”
>99% girls
Joie
“God shall add” · “God will add”
>99% girls
Josie
“God will add” · “God shall add”
>99% girls
Joosepe
“God shall add”
—
Josèphe
“God shall add”
>99% girls
Josée
“God shall add”
>99% girls
Joséphine
“God shall add”
>99% girls
Jozka
“God shall add”
—