Teaghan is a distinctive girls' name in United States, ranking #2626 in 2012 with 69 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 1,280.0%. In 2012, approximately 1 in every 25,518 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.