Boy name

Alonso

Alonso is currently the #785 boy name in the United States, based on 2025 Social Security data. In raw numbers: 324 babies. Its position has barely moved over the past five years — a sign of steady, established appeal. Looking at the full record since 1915, Alonso hit its all-time high of #622 in 2002, when 316 boys were given the name. State by state, California leads the way at #417.