Katharine is a distinctive girls' name in United States, ranking #2145 in 2015 with 89 recorded births. The name reached its all-time peak in 1998 with 453 births ranking #548. Since 1996, the popularity has decreased by 79.4%. In 2015, approximately 1 in every 20,052 girls born was named Katharine. FALLING Recent data shows the name is currently falling.