Marykatherine is a distinctive girls' name in United States, ranking #8489 in 2012 with 14 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4151. Since 1996, the popularity has decreased by 53.3%. In 2012, approximately 1 in every 125,767 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.