Tegan is a moderately popular girls' name in England & Wales, ranking #242 in 1997 with 166 recorded births. The name reached its all-time peak in 2003 with 530 births ranking #97. Since 1996, the popularity has increased by 48.2%. In 1997, approximately 1 in every 1,766 girls born was named Tegan. FALLING Recent data shows the name is currently falling.