Tiegan is a distinctive boys' name in United States, ranking #10648 in 2010 with 7 recorded births. This places Tiegan in the bottom 25% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 15 births ranking #6041. In 2010, approximately 1 in every 274,059 boys born was named Tiegan. FALLING Recent data shows the name is currently falling.