Marykatherine is a distinctive girls' name in United States, ranking #5604 in 2002 with 21 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4151. Since 1996, the popularity has decreased by 30.0%. In 2002, approximately 1 in every 85,563 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.