Free man
Kalle is a Scandinavian and Germanic diminutive of Karl. While traditionally a masculine name in Northern Europe, it has seen occasional use as a feminine name in the United States, often as a variant of Callie.
Fewer than 5 girls were named Kalle in 2025.
Estonian-Canadian writer and activist
Finnish world champion alpine skier
US births per 5-year period, 1990–present (SSA data).