Teaghan is a distinctive girls' name in United States, ranking #4562 in 2006 with 32 recorded births. The name reached its all-time peak in 2011 with 91 births ranking #2120. Since 1996, the popularity has increased by 540.0%. In 2006, approximately 1 in every 59,408 girls born was named Teaghan. FALLING Recent data shows the name is currently falling.