Finnegan is a moderately popular boys' name in United States, ranking #412 in 2018 with 770 recorded births. The name reached its all-time peak in 2021 with 860 births ranking #378. Since 1996, the popularity has increased by 15,300.0%. In 2018, approximately 1 in every 2,358 boys born was named Finnegan. STABLE Recent data shows the name is currently stable.