Teaghan is a distinctive girls' name in United States, ranking #3987 in 2016 with 38 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 660.0%. In 2016, approximately 1 in every 46,618 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.