Declining since 2009.
Popularity of Keilen since 1991
Babies named Keilen per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1990s | 0 | 29 |
| 2000s | 19 | 101 |
| 2010s | 12 | 94 |
| 2020s | 0 | 31 |
Meaning & origin
Keilen is a modern invention that entered U.S. birth records in 1991, placing it among the wave of newly created names that emerged in the late 20th century. Its trajectory shows a clear rise to a peak in 2009, followed by a steady decline through 2025. The name has never cracked the national top 1,000, meaning it remains highly uncommon. Its one-in-N ratio was not calculated due to low frequency, and it did not concentrate in any particular state. Keilen's appeal likely stems from its similarity to trendy names like Kayden and Braylen.
Keilen first appeared in U.S. birth records in 1991, suggesting a relatively recent coinage. It seems to follow the fashionable pattern of names ending in -en or -in, but no specific derivation from existing names or words can be reliably established.
Nicknames & variants
Nicknames: Kai
Sibling names for Keilen
Names that share Keilen's style, for a brother or sister.

