Lilo
Girl name · #3221 in 2025 · Very rare
How old is the name Lilo? In official American birth records, Lilo has been tracked continuously since 1955, giving it 70 years of documented American history.
Lilo ranks #3221 among American girls' names as of 2025, with 49 newborns given the name that year. A decade ago it stood at #6977, so the name has been rising over the past ten years. Roughly one in every 36,735 girls born in 2025 was named Lilo.
The 70-year story
Lilo first appears in the Social Security records in 1955, when 5 girls received the name. Its all-time peak is essentially right now: 2025, with 49 babies and a rank of #3211. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. 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 Lilo per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Lilo against up to 5 other names.
Uniqueness: will there be another Lilo in class?
On our rarity read — which blends how common Lilo is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Lilo will likely be the only one in the room, with the occasional spelling-out as the price.
Where Lilo is most common
State-level data for Lilo 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 Lilo
Statistically, parents drawn to Lilo tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Arlo, Harlo, Kleo, Livy, and Lenni.
ArloHarloKleoLivyLenniLeebaLeianiLivie
Rank history (last 25 years)
| Year | Babies named Lilo | Rank |
|---|---|---|
| 2025 | 49 | #3211 |
| 2024 | 39 | #3822 |
| 2023 | 44 | #3525 |
| 2022 | 44 | #3536 |
| 2021 | 42 | #3614 |
| 2020 | 40 | #3676 |
| 2019 | 32 | #4343 |
| 2018 | 22 | #5619 |
| 2017 | 23 | #5517 |
| 2016 | 28 | #4850 |
| 2015 | 17 | #6977 |
| 2014 | 18 | #6713 |
| 2013 | 8 | #11969 |
| 2012 | 12 | #9109 |
| 2010 | 7 | #13448 |
| 2006 | 6 | #15152 |
| 2005 | 6 | #14502 |
| 2004 | 6 | #14179 |
| 2003 | 9 | #10425 |
| 1959 | 5 | #6245 |
| 1955 | 5 | #5828 |
Frequently asked questions
How old is the name Lilo?
In official American birth records, the name Lilo first appeared in 1955 (over 70 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 70 years.
Is Lilo a popular girl name?
Lilo ranked #3221 among girls in 2025 with 49 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #6977.
When was the name Lilo most popular?
Lilo peaked in 2025, when 49 American girls received the name (ranked #3211 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Lilo?
In 2025, roughly 1 in 36,735 newborn American girls was named Lilo. 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.