Teaghan is a distinctive girls' name in United States, ranking #6168 in 1999 with 17 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 240.0%. In 1999, approximately 1 in every 104,340 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.