The name reached its all-time peak in 2007 with 7 births ranking #2435. FALLING Recent data shows the name is currently falling.
Teagan is a lively modern Celtic-style name with more than one commonly cited route. It is often associated with ideas such as beauty or poetry, but sources do vary.
The name grew rapidly because it sounds energetic and contemporary while still carrying Celtic flavour. Its popularity is stronger than certainty about one single etymology.