Lilli
Girl name · #3910 in 2025 · Very rare
How old is the name Lilli? In official American birth records, Lilli has been tracked continuously since 1912, giving it 113 years of documented American history.
In 2025, 37 baby girls were named Lilli, placing it at #3910 in the official national rankings. A decade ago it stood at #2501, so the name has been falling over the past ten years. Roughly one in every 48,649 girls born in 2025 was named Lilli.
The 113-year story
Lilli first appears in the Social Security records in 1912, when 5 girls received the name. Its peak came in 2006, when 174 girls were named Lilli — good for #1335 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Lilli per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Lilli against up to 5 other names.
Uniqueness: will there be another Lilli in class?
On our rarity read — which blends how common Lilli is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Lilli will likely be the only one in the room, with the occasional spelling-out as the price.
Where Lilli is most common
State-level data for Lilli is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Lilli
Statistically, parents drawn to Lilli tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kalli, Nayelli, Elli, Emeli, and Lili.
KalliNayelliElliEmeliLiliCalliEmiliAnjali
Rank history (last 25 years)
| Year | Babies named Lilli | Rank |
|---|---|---|
| 2025 | 37 | #3903 |
| 2024 | 37 | #3963 |
| 2023 | 31 | #4454 |
| 2022 | 38 | #3893 |
| 2021 | 49 | #3250 |
| 2020 | 49 | #3179 |
| 2019 | 51 | #3130 |
| 2018 | 55 | #2962 |
| 2017 | 74 | #2432 |
| 2016 | 72 | #2502 |
| 2015 | 72 | #2501 |
| 2014 | 78 | #2351 |
| 2013 | 112 | #1814 |
| 2012 | 127 | #1674 |
| 2011 | 155 | #1455 |
| 2010 | 141 | #1566 |
| 2009 | 149 | #1521 |
| 2008 | 170 | #1395 |
| 2007 | 148 | #1544 |
| 2006 | 174 | #1335 |
| 2005 | 130 | #1565 |
| 2004 | 134 | #1498 |
| 2003 | 134 | #1463 |
| 2002 | 106 | #1720 |
| 2001 | 80 | #2075 |
Frequently asked questions
How old is the name Lilli?
In official American birth records, the name Lilli first appeared in 1912 (over 113 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 113 years.
Is Lilli a popular girl name?
Lilli ranked #3910 among girls in 2025 with 37 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2501.
When was the name Lilli most popular?
Lilli peaked in 2006, when 174 American girls received the name (ranked #1335 that year). Since 2006 the name has declined from that high.
How rare is the name Lilli?
In 2025, roughly 1 in 48,649 newborn American girls was named Lilli. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.