Tegan is a moderately popular girls' name in England & Wales, ranking #233 in 1999 with 175 recorded births. The name reached its all-time peak in 2003 with 530 births ranking #97. Since 1996, the popularity has increased by 56.3%. In 1999, approximately 1 in every 1,610 girls born was named Tegan. FALLING Recent data shows the name is currently falling.