Slender or narrow
Kallen is a modern variant of the Gaelic surname Callan, which is derived from the word 'caol' meaning slender. It is also occasionally associated with the Germanic name Kalle, a diminutive of Karl. In contemporary usage, it serves as a softer, more unique alternative to names like Callum or Kaleb.
About 150 boys were named Kallen in 2025.
US births per 5-year period, 1990–present (SSA data).
American operatic soprano
Resistance fighter and pilot · Code Geass
The same feel as Kallen — far less common.
Hidden gems that stand out.
