Marykatherine is a distinctive girls' name in United States, ranking #11909 in 2010 with 9 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4151. Since 1996, the popularity has decreased by 70.0%. In 2010, approximately 1 in every 197,481 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.