Jyllian is a distinctive girls' name in United States, ranking #11646 in 2011 with 9 recorded births. The name reached its all-time peak in 2001 with 23 births ranking #5085. Since 1996, the popularity has increased by 50.0%. In 2011, approximately 1 in every 195,423 girls born was named Jyllian. FALLING Recent data shows the name is currently falling.