Marykatherine is a distinctive girls' name in United States, ranking #8789 in 2014 with 13 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4151. Since 1996, the popularity has decreased by 56.7%. In 2014, approximately 1 in every 137,380 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.