Fallon is a distinctive girls' name in United States, ranking #779 in 2025 with 349 recorded births. The name reached its all-time peak in 2023 with 422 births ranking #688. Since 1996, the popularity has increased by 98.3%. In 2025, approximately 1 in every 4,605 girls born was named Fallon. FALLING Recent data shows the name is currently falling.