Galen is a distinctive girls' name in United States, ranking #8416 in 1999 with 11 recorded births. The name reached its all-time peak in 1998 with 19 births ranking #5440. Since 1996, the popularity has decreased by 31.3%. In 1999, approximately 1 in every 161,253 girls born was named Galen. FALLING Recent data shows the name is currently falling.