Boy name

Alfonso

Alfonso is currently the #1012 boy name in the United States, based on 2025 Social Security data. In raw numbers: 223 babies. Its position has barely moved over the past five years — a sign of steady, established appeal. Looking at the full record since 1881, Alfonso hit its all-time high of #294 in 1929, when 356 boys were given the name. State by state, Texas leads the way at #526.