Teaghan is a distinctive girls' name in United States, ranking #2990 in 2008 with 59 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 1,080.0%. In 2008, approximately 1 in every 32,046 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.