Tegan is a distinctive girls' name in United States, ranking #1883 in 2000 with 91 recorded births. The name reached its all-time peak in 2011 with 350 births ranking #780. Since 1996, the popularity has increased by 26.4%. In 2000, approximately 1 in every 19,956 girls born was named Tegan. FALLING Recent data shows the name is currently falling.