Jyllian is a distinctive girls' name in United States, ranking #8045 in 2006 with 15 recorded births. The name reached its all-time peak in 2001 with 23 births ranking #5085. Since 1996, the popularity has increased by 150.0%. In 2006, approximately 1 in every 126,738 girls born was named Jyllian. FALLING Recent data shows the name is currently falling.