Galen is a distinctive girls' name in United States, ranking #5440 in 1998 with 19 recorded births. The name reached its all-time peak in 1998 with 19 births ranking #5440. Since 1996, the popularity has increased by 18.8%. In 1998, approximately 1 in every 92,994 girls born was named Galen. FALLING Recent data shows the name is currently falling.