Tegan is a distinctive girls' name in United States, ranking #1391 in 2007 with 173 recorded births. The name reached its all-time peak in 2011 with 350 births ranking #780. Since 1996, the popularity has increased by 140.3%. In 2007, approximately 1 in every 11,112 girls born was named Tegan. FALLING Recent data shows the name is currently falling.