Teaghan is a distinctive girls' name in United States, ranking #4348 in 2018 with 33 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 560.0%. In 2018, approximately 1 in every 51,528 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.