Fewer than five US girls were named Sheilah in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #664, reached in 1955. That year also had the most girls given the name: 199. For comparison, it was unranked (under five girls) in 2015 and #1,223 in 1950.
Social Security card records list Sheilah in 68 years of the 146 from 1880 to 2025, starting in 1924 with 5 babies. In all, 2,285 US babies have been given the name, all of them girls. Its busiest decade was the 1950s, with 884 babies named Sheilah.
In none of the 10 years from 2016 to 2025 were five or more US girls named Sheilah.
Related spellings in the SSA files include Sheila (239,422 babies since 1880), Sheyla (4,241 babies since 1880) and Shylah (1,779 babies since 1880). Rarer spellings such as Shelagh and Sheelagh are summarised on this page.