Finnegan is a moderately popular boys' name in United States, ranking #409 in 2020 with 724 recorded births. The name reached its all-time peak in 2021 with 860 births ranking #378. Since 1996, the popularity has increased by 14,380.0%. In 2020, approximately 1 in every 2,383 boys born was named Finnegan. STABLE Recent data shows the name is currently stable.