MallowbyNames

Jocilyn

JOSS-uh-lin · Of uncertain origin; likely a modern respelling of Jocelyn, possibly derived from a Germanic name meaning 'member of the Gauts' or from Latin 'jocosus' meaning 'joyful'.

Peak popularity
2009
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Jocilyn since 1980

Babies named Jocilyn per year in U.S. Social Security records.

91928198020002020Most births 2009Girls
Data table (by decade)
DecadeGirls
1980s26
1990s98
2000s168
2010s91
2020s0

Meaning & origin

The name Jocilyn first appeared in U.S. birth records in 1980, reflecting the 20th-century trend of creating new spellings for established names. It reached its highest point of usage in 2009, though it has never been common. In the most recent available year (2025), the name was given to fewer than 5 newborns, and it has not appeared in national rankings. Despite its rarity, Jocilyn has shown remarkable stability over time, with its trajectory classified as 'stable', meaning it has not experienced dramatic surges or declines in usage. Jocilyn is a feminized respelling, akin to Madelyn or Kaitlyn, and its appeal lies in its familiar sound and distinctive spelling.

Jocilyn is a modern respelling of Jocelyn, a name that itself has debated origins. The traditional view connects it to the Old French Jocelyn, from a Germanic personal name 'Gautelen' or 'Gozelin', meaning 'little Gaut' (a tribal name). Alternatively, some trace it to Latin 'jocosus' (joyful) via the medieval name 'Jocosa'. The spelling Jocilyn appears as a 20th-century variation, likely influenced by the popular suffix '-lyn'.

Nicknames & variants

Nicknames: Joss, Joci, Lyn

Sibling names for Jocilyn

Names that share Jocilyn's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

J is for Jocilyn, our favorite little girl.

J is for Jocilyn…”

In a Mallowby alphabet book, Jocilyn's letter becomes Jocilyn's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Jocilyn's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Jocilyn mean?
The meaning of Jocilyn is uncertain. It is a modern variant of Jocelyn, which may derive from a Germanic name meaning 'member of the Gauts' or from Latin 'jocosus' meaning 'joyful'.
How popular is the name Jocilyn?
Jocilyn is a rare name. In the most recent data from 2025, it was given to fewer than 5 babies in the United States and did not rank within the top 1000. Its peak usage was in 2009.
Is Jocilyn a boy's or girl's name?
Jocilyn is almost exclusively used for girls.