In 2025, 40 US girls were named Brynnley, making it the 3,727th most common girls’ name of the year, down 320 places from #3,407 in 2024. That is 6 fewer than the 46 girls named Brynnley in 2024. Its best rank for girls was #2,386, reached in 2013. The most girls given the name in a single year was 77, in 2015. For comparison, it was #2,387 in 2015 and unranked in 1950.
Social Security card records list Brynnley in 22 years of the 146 from 1880 to 2025, starting in 2003 with 10 babies. In all, 976 US babies have been given the name, all of them girls. Its busiest decade was the 2010s, with 619 babies named Brynnley.
Over the 10 years from 2016 to 2025, 542 US girls were named Brynnley; the busiest of those years was 2019, with 71. In 2025 that was about 1 in 40,182 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Brynlee (22,250 babies since 1880), Brinley (13,641 babies since 1880), Brynley (3,425 babies since 1880) and Brynnlee (1,962 babies since 1880).