Marykatherine is a distinctive girls' name in United States, ranking #6384 in 2000 with 17 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4151. Since 1996, the popularity has decreased by 43.3%. In 2000, approximately 1 in every 106,822 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.