Len
Len was the 9377th most popular name for boys in 2025, given to 8 babies. Its best year was 1885, when it ranked 514th; the most babies were born in 1960 (121). Over the last ten years it has moved down 2,459 places. More babies were named Len in the 1960s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #9,377 boys, up 801 places since 2020
- Babies in 2025
- 8boys
- Girls and boys
- Almost always a boy’s name2021–2025
- Peak year
- 1960121 babies
- Total since 1880
- 4,616babies recorded
Len popularity since 1880
A few girls are given the name too: 102 since 1932.
| Year | Rank (boys) | Babies (boys) |
|---|---|---|
| 2025 | #9,377 | 8 |
| 2020 | #10,178 | 7 |
| 2010 | #6,582 | 13 |
| 2000 | #5,770 | 12 |
| 1990 | #4,105 | 14 |
| 1980 | #2,087 | 26 |
| 1970 | #773 | 114 |
| 1960 | #713 | 121 |
| 1950 | #841 | 66 |
| 1940 | #935 | 47 |
| 1930 | #1,185 | 36 |
| 1920 | #1,060 | 44 |
| 1910 | #1,085 | 10 |
| 1900 | #877 | 10 |
| 1890 | #622 | 11 |
| 1880 | #780 | 7 |
How popular is Len, counting every spelling?
Len has no other common spelling that sounds the same.
How many kids will share the name Len?
8 of the 3,606,400 babies born in the US in 2025 were named Len (0.00 per 1,000 births). For a boy named Len 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 1,057 (of 430 pupils) would have a child named Len.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Len?
About 2,600 people born in the US named Len are alive today, with a median age of 61; half are between 50 and 69. That makes Len a name most people associate with older generations.
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.
Names with a similar history
These names rose and fell in step with Len: their share of US boys followed the most similar curve since 1880. If you like Len, they share its era and feel.
Len is also a nickname for Lennox, Lennon and Leonard.
Questions about the name Len
How popular is the name Len?
Len was the 9377th most popular name for boys in 2025, given to 8 babies. Its best year was 1885, when it ranked 514th; the most babies were born in 1960 (121). Over the last ten years it has moved down 2,459 places. More babies were named Len in the 1960s than in any other decade.
Is Len a boy or girl name?
In 2021–2025, almost always a boy’s name given the name Len in the US.