Finnegan is a moderately popular boys' name in United States, ranking #405 in 2015 with 765 recorded births. The name reached its all-time peak in 2021 with 860 births ranking #378. Since 1996, the popularity has increased by 15,200.0%. In 2015, approximately 1 in every 2,505 boys born was named Finnegan. STABLE Recent data shows the name is currently stable.