Jyllian is a distinctive girls' name in United States, ranking #6683 in 2007 with 20 recorded births. The name reached its all-time peak in 2001 with 23 births ranking #5085. Since 1996, the popularity has increased by 233.3%. In 2007, approximately 1 in every 96,122 girls born was named Jyllian. FALLING Recent data shows the name is currently falling.