Londynn
Londynn was the 1789th most popular name for girls in 2025, given to 113 babies. Its best year was 2020, when it ranked 1057th; the most babies were born in 2015 (246). Over the last ten years it has moved down 720 places. More babies were named Londynn in the 2010s than in any other decade.
Meaning (as Londyn) Origin not documented
- Rank in 2025
- #1,789 girls, down 732 places since 2020
- Babies in 2025
- 113girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 2015246 babies
- Total since 1880
- 3,141babies recorded
What does the name Londynn mean?
Londynn is a spelling of Londyn, pronounced the same way, so it shares Londyn's meaning and origin.
Londyn is a modern American spelling of London, the capital of England, used as a girl's name since the late 1990s. The city's name is ancient, recorded by the Romans as Londinium, and its origin is not known; several pre-Roman Celtic explanations have been proposed but none is accepted. The y spelling follows the trend of names such as Brooklyn and Jordyn.
How sure is this? Not documented. A respelling of London; the place name itself has no established etymology.
Related names: London.
Sources for this meaning
- Wiktionary, entry 'London', Wiktionary (Wikimedia Foundation)
- US Social Security Administration, national baby-name data 1880-2025 (usage history only), US Social Security Administration
Londynn popularity since 1880
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #1,789 | 113 |
| 2020 | #1,057 | 236 |
| 2010 | #1,618 | 134 |
| 2000 | — | — |
| 1990 | — | — |
| 1980 | — | — |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Londynn, counting every spelling?
Londynn is a spelling of Londyn, a name family that ranked #212 for girls in 2025 once every spelling is counted together, compared with #1,789 for Londynn on its own. Together these spellings went to 1,631 girls in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Londyn | 799 | #388 | 5,748 |
| London | 719 | #431 | 5,018 |
| Londynn | 113 | #1,789 | 819 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Londynn?
113 of the 3,606,400 babies born in the US in 2025 were named Londynn (0.03 per 1,000 births). For a girl named Londynn born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 74 (of 430 pupils) would have a child named Londynn.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Londynn?
About 3,100 people born in the US named Londynn are alive today, with a median age of 9; half are between 5 and 13. That makes Londynn a young name: most people with it are children.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Londynn by state
How common Londynn was among girls born in each state in 2021–2025. It is notably more common than nationally in Mississippi (6.3×), Louisiana (4.1×), Alabama (3.0×), Missouri (2.6×), Georgia (2.5×). In 30 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Londynn: their share of US girls followed the most similar curve since 1880. If you like Londynn, they share its era and feel.
Questions about the name Londynn
How popular is the name Londynn?
Londynn was the 1789th most popular name for girls in 2025, given to 113 babies. Its best year was 2020, when it ranked 1057th; the most babies were born in 2015 (246). Over the last ten years it has moved down 720 places. More babies were named Londynn in the 2010s than in any other decade.
Is Londynn a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Londynn in the US.
Where is Londynn most popular?
In 2021–2025, Londynn was most common in Mississippi (0.64 per 1,000 girls), followed by Louisiana and Alabama.