Tegan is a distinctive girls' name in United States, ranking #1022 in 2009 with 257 recorded births. The name reached its all-time peak in 2011 with 350 births ranking #780. Since 1996, the popularity has increased by 256.9%. In 2009, approximately 1 in every 7,147 girls born was named Tegan. FALLING Recent data shows the name is currently falling.