Jillion
- US rank
- Unranked
- Syllables
- 2
- Peak
- #7,749 in 1986
0 babies were named Jillion in the US in 2025.
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US births per million girls, 1982–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Jillion you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryJillion first shows up in US birth records in 1982, the first year at least 5 babies got it. It has been in use for 43 years since.
- Best yearIts best year was 1986, when it reached #7,749.
About the name Jillion
Jillion is a girl name of Latin origin. It has 7 letters and 2 syllables, starting with J and ending in “-ion”. US birth records list Jillion for girls from 1982 to 1989, in 3 of those 8 years. Its best year was 1986, when it ranked #7,749 among girl names. It hasn't been given to 5 or more US babies in a year since 1989, so today it's a genuinely rare choice.
Origin:Latin names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1980s | 1.6 | 640,000 girls |
More Latin girl names
- Girl name: Olivia · olive tree
- Girl name: Amelia · work, industrious
- Girl name: Mia · possibly beloved
- Girl name: Evelyn · possibly desired
- Girl name: Ava · possibly bird, or life
- Girl name: Violet · violet flower
- Girl name: Aurora · dawn
- Girl name: Lily · lily flower
Questions about the name Jillion
What is the origin of the name Jillion?
Jillion has Latin roots in our records. Other Latin names include Olivia, Amelia, Mia.
Is Jillion a boy or girl name?
Jillion is a girl name.
How popular is the name Jillion?
Jillion is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 1989. It peaked at #7,749 in 1986.