Girl & boy name
Rio
As of 2025, Rio ranks #532 among American boys' names, according to Social Security records. 563 boys received the name that year. It has climbed from #774 to #532 over the past five years. SSA records for Rio go back to 1920; the peak came in 2024 at #517, with 593 babies named that year. Geographically, it's strongest in District of Columbia, where it ranks #139 among boy names.
Rankings
Rio popularity, 1880–2025
Where Rio 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 Rio in the most recent year of SSA data.
Similar names
Rio as a girl name
Rio is currently the #1872 girl name in the United States, based on 2025 Social Security data. In raw numbers: 105 babies. The ranking has held remarkably steady over the last five years. Looking at the full record since 1930, Rio hit its all-time high of #1676 in 2021, when 124 girls were given the name. State by state, Utah leads the way at #605.