Teaghan is a distinctive girls' name in United States, ranking #2886 in 2009 with 61 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 1,120.0%. In 2009, approximately 1 in every 30,113 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.