Marykatherine is a distinctive girls' name in United States, ranking #6474 in 2007 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 2007, approximately 1 in every 91,545 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.