Ildefonso
Ildefonso (Ildefonsus) is a Spanish given name, ultimately from Gothic Hildefuns, the name of 7th-century saint and archbishop Ildephonsus.
Meaning & Origin of Ildefonso
What this name means, where it came from, and how it has traveled across cultures.
Ildefonso (Ildefonsus) is a Spanish given name, ultimately from Gothic Hildefuns, the name of 7th-century saint and archbishop Ildephonsus.
Source: Wikipedia (CC BY-SA 3.0). Read more →
The Story of Ildefonso
Ildefonso first appeared in U.S. Social Security Administration records as a baby boy name in 1917, with 6 babies given the name that year. Its peak popularity came in 1976, when 16 Ildefonsos were born — ranking #2,601 that year. As of 2026, Ildefonso ranks #12,323 for baby boys with 5 births, with steady use. In total, more than 392 Ildefonsos have been born in the U.S. since records began in 1880, spanning the 1910s through the 2020s.
Popularity Over Time
Popularity by State
Names that sound like Ildefonso
Phonetically similar names — useful when Ildefonso 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 Ildefonso
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About the name Ildefonso
Ildefonso is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1917 and has accumulated 392 births in the dataset. Ildefonso's peak popularity came in 1976 when it ranked #2,601. Use the chart and map above to compare Ildefonso's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 1976 →
- Names of the 1970s →
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- 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.