Karen is a moderately popular girls' name in United States, ranking #152 in 1998 with 2,073 recorded births. The name reached its all-time peak in 1996 with 2,401 births ranking #133. Since 1996, the popularity has decreased by 13.7%. In 1998, approximately 1 in every 852 girls born was named Karen. FALLING Recent data shows the name is currently falling.