Tegan is a distinctive girls' name in United States, ranking #1469 in 2004 with 138 recorded births. The name reached its all-time peak in 2011 with 350 births ranking #780. Since 1996, the popularity has increased by 91.7%. In 2004, approximately 1 in every 13,305 girls born was named Tegan. FALLING Recent data shows the name is currently falling.