Alonso
Alonso is a Spanish name of Germanic origin that is a Castilian variant of Adalfuns. The original Visigothic name Alfonso suffered the phonetic change of the phoneme /f/ into the mute /h/ in the Early Middle Ages, what eventually suppressed the sound /f/ from the name, deriving in the modern form Alonso.
- Spanish
Meaning & Origin of Alonso
What this name means, where it came from, and how it has traveled across cultures.
Alonso is a Spanish name of Germanic origin that is a Castilian variant of Adalfuns. The original Visigothic name Alfonso suffered the phonetic change of the phoneme /f/ into the mute /h/ in the Early Middle Ages, what eventually suppressed the sound /f/ from the name, deriving in the modern form Alonso.
Source: Wikipedia (CC BY-SA 3.0). Read more →
Cultural Origins (via Behind the Name)
- Spanish
The Story of Alonso
Alonso first appeared in U.S. Social Security Administration records as a baby boy name in 1915, with 5 babies given the name that year. Its peak popularity came in 2010, when 380 Alonsos were born — ranking #636 that year. As of 2026, Alonso ranks #787 for baby boys with 324 births, holding steady (+3%). In total, more than 13K Alonsos have been born in the U.S. since records began in 1880, spanning the 1910s through the 2020s.
Popularity Over Time
Popularity by State
Variants & Related Forms of Alonso
Foreign forms, alternate spellings, and nicknames that share roots with Alonso. Linked entries have a profile on Peek a Name.
Names that sound like Alonso
Phonetically similar names — useful when Alonso is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.
Source: Datamuse . Phonetic similarity ranking, not curated.
Frequently Asked Questions about Alonso
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About the name Alonso
Alonso is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1915 and has accumulated 13K births in the dataset. Alonso's peak popularity came in 2010 when it ranked #622. Use the chart and map above to compare Alonso's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 2010 →
- Names of the 2010s →
- Names starting with "A" →
- Browse all boy names →
- Top names of 2026 →
Data sources
- Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
- Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
- Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
- Predicted nationality distribution — Nationalize.io .
- Phonetically similar names — Datamuse .
Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.