Marykathryn is a distinctive girls' name in United States, ranking #11812 in 2023 with 8 recorded births. The name reached its all-time peak in 2000 with 20 births ranking #5617. Since 1996, the popularity has decreased by 55.6%. In 2023, approximately 1 in every 200,331 girls born was named Marykathryn. FALLING Recent data shows the name is currently falling.