Girl & boy name
Sky
As of 2025, Sky ranks #948 among American girls' names, according to Social Security records. 272 girls received the name that year. Popularity is fading: #803 five years ago, #948 now. SSA records for Sky go back to 1958; the peak came in 2021 at #710, with 405 babies named that year. Geographically, it's strongest in Connecticut, where it ranks #459 among girl names.
Rankings
Sky popularity, 1880–2025
Where Sky is most popular
Uniqueness score
Well known, but far from crowded — the middle of the field. Based on how many babies per birth were named Sky in the most recent year of SSA data.
Sky as a boy name
Sky holds the #1654 spot on the 2025 list of the most popular boy names in the U.S. That amounts to 101 newborn boys in a single year. The ranking has held remarkably steady over the last five years. Its strongest year on record was 1978 (#1034 nationally, 71 newborns), in a data series reaching back to 1953. The name's biggest fan base is in California (#862 there in 2025).