Teaghan is a distinctive girls' name in United States, ranking #4658 in 2003 with 28 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 460.0%. In 2003, approximately 1 in every 65,252 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.