Girl’s name · English, Latin

Jillian

How to say it: JIL-ee-un · /ˈdʒɪliən/

English feminine form of Julian, derived from Roman 'Julianus', meaning 'youthful' or relating to Julius.

Jillian was the 936th most popular girls’ name in the United States in 2025, given to 177 babies (Social Security Administration). Its busiest decade was the 1980s, its births are down about 73% in ten years, and it is projected to slip to #1,221 by 2030.

Updated · SSA 2025 data, published May 2026 · How we compute these figures

#936for girls in 2025
1 in 14,800US babies
177born in 2025
#1,221projected for 2030
1980sits peak decade
under 1 in 200chance a classmate shares it

Key facts

Key facts about Jillian
Rank among girls’ names, 2025#936
Babies born in 2025177
Share of births1 in 14,800
Peak decade1980s
Change over 10 years−73%
Projected rank for 2030 (estimate)#1,221

Sources: Social Security Administration (SSA). How we compute these figures.

Its life, decade by decade

After rising to the 1980s, Jillian has grown steadily rarer. Far below its former high, it seems headed for further softening.

1900195020002020–25
Peak: 1,479 per million births, 1980s.

What goes with it

Flowing softly across three syllables, Jillian keeps a smooth lilt. Allison sits comfortably alongside it.

Nicknames

  • Jill
  • Jilly

Other spellings

Honouring a Jillian in the family

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Jillian is about under 1 in 200.

Around the world

This spelling is used in English, French.

Famous people named Jillian

From Wikidata and Wikipedia

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