Tegan is a distinctive girls' name in United States, ranking #1895 in 2002 with 94 recorded births. The name reached its all-time peak in 2011 with 350 births ranking #780. Since 1996, the popularity has increased by 30.6%. In 2002, approximately 1 in every 19,115 girls born was named Tegan. FALLING Recent data shows the name is currently falling.