In 2025, 306 US boys were named Brock, making it the 810th most common boys’ name of the year, down 108 places from #702 in 2024. That is 77 fewer than the 383 boys named Brock in 2024. Its best rank for boys was #243, reached in 2003. That year also had the most boys given the name: 1,378. For comparison, it was #449 in 2015 and #1,186 in 1950.
Social Security card records list Brock in 100 years of the 146 from 1880 to 2025, starting in 1914 with 8 babies. In all, 43,615 US babies have been given the name, 0.2% of them girls and 99.8% boys. Its busiest decade was the 2000s, with 12,452 babies named Brock.
Over the 10 years from 2016 to 2025, 4,259 US boys were named Brock; the busiest of those years was 2016, with 689. In 2025 that was about 1 in 5,582 of the boys in SSA’s list for the year.
Among the states, Brock ranked highest in Montana in 2025, at #179 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Broc (2,522 babies since 1880), Bruce (388,275 babies since 1880), Brooke (200,521 babies since 1880) and Brook (14,021 babies since 1880).