Marykatherine is a distinctive girls' name in United States, ranking #4973 in 1999 with 22 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4151. Since 1996, the popularity has decreased by 26.7%. In 1999, approximately 1 in every 80,626 girls born was named Marykatherine. RISING Recent data shows the name is currently rising.