Teaghan is a distinctive girls' name in United States, ranking #4442 in 2014 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 2014, approximately 1 in every 54,119 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.