Teaghan is a distinctive girls' name in United States, ranking #3121 in 2013 with 53 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 960.0%. In 2013, approximately 1 in every 33,102 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.