Gallagher is a distinctive boys' name in United States, ranking #12682 in 2020 with 5 recorded births. This places Gallagher in the bottom 10% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2023 with 6 births ranking #11279. In 2020, approximately 1 in every 345,013 boys born was named Gallagher. RISING Recent data shows the name is currently rising.