Costello
The Story of Costello
As a girl name
Costello first appeared in U.S. Social Security Administration records as a girl name in 1931, with 5 babies given the name that year. The name hit its high-water mark in 1931: 5 births, good for #4,331 nationwide. Costello last appeared in the published SSA data in 1931, with 5 recorded births — it has not charted nationally since. All told, over 5 Americans have carried the name since 1880, from the 1930s to the 2020s.
As a boy name
Costello first appeared in U.S. Social Security Administration records as a boy name in 1942, with 5 babies given the name that year. The name hit its high-water mark in 1951: 11 births, good for #2,367 nationwide. About 38% of every Costello on record arrived during the 1950s, its defining decade. Costello last appeared in the published SSA data in 2021, with 5 recorded births — it has not charted nationally since. All told, over 61 Americans have carried the name since 1880, from the 1940s to the 2020s.
Popularity Over Time
Popularity by State
Names that sound like Costello
Phonetically similar names — useful when Costello is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.
- Castelo
- Castello
- Castillo
- Castelli
- Castilla
- Costal
- Costilla
- Costly
- Costales
- Kostal
- Kostel
- Coastal
Source: Datamuse . Phonetic similarity ranking, not curated.
Frequently Asked Questions about Costello
What does the name Costello mean?
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About the name Costello
Costello is a unisex baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1942 and has accumulated 61 births in the dataset. Costello's peak popularity came in 1951 when it ranked #2,367. Use the chart and map above to compare Costello's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 1951 →
- Names of the 1950s →
- Names starting with "C" →
- Browse all boy names →
- Top names of 2026 →
- Browse unisex names →
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.