Tegan is a distinctive girls' name in United States, ranking #1444 in 2003 with 137 recorded births. The name reached its all-time peak in 2011 with 350 births ranking #780. Since 1996, the popularity has increased by 90.3%. In 2003, approximately 1 in every 13,336 girls born was named Tegan. FALLING Recent data shows the name is currently falling.