In 2025, 126 US girls were named Rilynn, making it the 1,649th most common girls’ name of the year, up 128 places from #1,777 in 2024. That is 12 more than the 114 girls named Rilynn in 2024. Its best rank for girls was #1,009, reached in 2019. The most girls given the name in a single year was 257, in 2018. For comparison, it was #1,103 in 2015 and unranked in 1950.
Social Security card records list Rilynn in 26 years of the 146 from 1880 to 2025, starting in 1999 with 6 babies. In all, 3,730 US babies have been given the name, 98% of them girls and 1.9% boys. Its busiest decade was the 2010s, with 2,303 babies named Rilynn.
Over the 10 years from 2016 to 2025, 2,029 US girls were named Rilynn; the busiest of those years was 2018, with 257. In 2025 that was about 1 in 12,756 of the girls in SSA’s list for the year.
Among the states, Rilynn ranked highest in Missouri in 2025, at #1,050 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Rylynn (3,243 babies since 1880) and Rilyn (1,434 babies since 1880). Rarer spellings such as Reilynn, Rielyn and Rileyann are summarised on this page.