Brannigan is a distinctive boys' name in United States, ranking #12559 in 2024 with 5 recorded births. This places Brannigan in the bottom 12% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2004 with 6 births ranking #10123. In 2024, approximately 1 in every 343,063 boys born was named Brannigan. FALLING Recent data shows the name is currently falling.