Jyllian is a distinctive girls' name in United States, ranking #18122 in 2012 with 5 recorded births. The name reached its all-time peak in 2001 with 23 births ranking #5085. Since 1996, the popularity has decreased by 16.7%. In 2012, approximately 1 in every 352,148 girls born was named Jyllian. FALLING Recent data shows the name is currently falling.