Londynn
Girl name · #1792 in 2025 · Very rare
How old is the name Londynn? In official American birth records, Londynn has been tracked continuously since 2004, giving it 21 years of documented American history.
Londynn ranks #1792 among American girls' names as of 2025, with 113 newborns given the name that year. A decade ago it stood at #1068, so the name has been falling over the past ten years. Roughly one in every 15,929 girls born in 2025 was named Londynn.
The 21-year story
Londynn first appears in the Social Security records in 2004, when 8 girls received the name. Its peak came in 2015, when 246 girls were named Londynn — good for #1068 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 Londynn per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Londynn against up to 5 other names.
Uniqueness: will there be another Londynn in class?
On our rarity read — which blends how common Londynn is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Londynn will likely be the only one in the room, with the occasional spelling-out as the price.
Where Londynn is most common
State-level data for Londynn 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 Londynn
Statistically, parents drawn to Londynn tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Evalynn, Adilynn, Acelynn, Rilynn, and Emmalynn.
EvalynnAdilynnAcelynnRilynnEmmalynnRylynnTaelynnAddilynn
Rank history (last 25 years)
| Year | Babies named Londynn | Rank |
|---|---|---|
| 2025 | 113 | #1777 |
| 2024 | 140 | #1529 |
| 2023 | 160 | #1402 |
| 2022 | 192 | #1251 |
| 2021 | 214 | #1146 |
| 2020 | 236 | #1055 |
| 2019 | 197 | #1193 |
| 2018 | 165 | #1367 |
| 2017 | 191 | #1244 |
| 2016 | 214 | #1173 |
| 2015 | 246 | #1068 |
| 2014 | 238 | #1074 |
| 2013 | 216 | #1121 |
| 2012 | 171 | #1364 |
| 2011 | 159 | #1427 |
| 2010 | 134 | #1611 |
| 2009 | 60 | #2892 |
| 2008 | 55 | #3084 |
| 2007 | 21 | #6323 |
| 2006 | 5 | #17168 |
| 2005 | 6 | #14502 |
| 2004 | 8 | #11624 |
Frequently asked questions
How old is the name Londynn?
In official American birth records, the name Londynn first appeared in 2004 (over 21 years ago), when 8 newborn girls received the name. It has been tracked in modern national records for 21 years.
Is Londynn a popular girl name?
Londynn ranked #1792 among girls in 2025 with 113 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1068.
When was the name Londynn most popular?
Londynn peaked in 2015, when 246 American girls received the name (ranked #1068 that year). Since 2015 the name has declined from that high.
How rare is the name Londynn?
In 2025, roughly 1 in 15,929 newborn American girls was named Londynn. 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.