Lonni
- US rank
- Unranked
- Syllables
- 2
- Peak
- #2,869 in 1959
0 babies were named Lonni in the US in 2025.
Found on lists
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US births per million girls, 1944–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Lonni you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryLonni first shows up in US birth records in 1944, the first year at least 5 babies got it. It has been in use for 81 years since.
- Best yearIts best year was 1959, when it reached #2,869.
About the name Lonni
Lonni is a girl name of American origin. It has 5 letters and 2 syllables, starting with L and ending in “-nni”. US birth records list Lonni for girls from 1944 to 2024, in 50 of those 81 years. Its best year was 1959, when it ranked #2,869 among girl names. It hasn't been given to 5 or more US babies in a year since 2024, so today it's a genuinely rare choice.
Origin:American names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1940s | 4.1 | 242,915 girls |
| 1950s | 5.7 | 174,216 girls |
| 1960s | 4.2 | 238,663 girls |
| 1970s | 4.5 | 223,714 girls |
| 1980s | 4.1 | 246,914 girls |
| 1990s | 0.6 | 1,562,500 girls |
| 2000s | 0.3 | 3,703,704 girls |
| 2010s | 0.7 | 1,408,451 girls |
| 2020s | 2.4 | 423,729 girls |
Other spellings of Lonni
More American girl names
- Girl name: Lainey · possibly light
- Girl name: Daisy · day's eye
- Girl name: Josie · he will add
- Unisex name: Kinsley · king's meadow
- Girl name: Sienna · from Siena
- Unisex name: Brooklyn · from Brooklyn, New York
- Girl name: Summer · summer
- Unisex name: Stevie · crown
Questions about the name Lonni
What is the origin of the name Lonni?
Lonni has American roots in our records. Other American names include Lainey, Daisy, Josie.
Is Lonni a boy or girl name?
Lonni is a girl name.
How popular is the name Lonni?
Lonni is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 2024. It peaked at #2,869 in 1959.