Marilou
Mary Lou, Mary-Lou, Marylou or Marilou is a feminine given name. It is a combination of the names Mary and Lou.
Meaning & Origin of Marilou
What this name means, where it came from, and how it has traveled across cultures.
Mary Lou, Mary-Lou, Marylou or Marilou is a feminine given name. It is a combination of the names Mary and Lou.
Source: Wikipedia (CC BY-SA 3.0). Read more →
The Story of Marilou
The earliest SSA record of Marilou as a baby girl name dates back to 1915, when 10 babies received it. 1948 was its biggest year on record, with 90 newborns named Marilou — #914 in the national rankings. About 23% of every Marilou on record arrived during the 1940s, its defining decade. Marilou last appeared in the published SSA data in 2024, with 8 recorded births — it has not charted nationally since. All told, over 3K Americans have carried the name since 1880, from the 1910s to the 2020s.
Popularity Over Time
Popularity by State
Names that sound like Marilou
Phonetically similar names — useful when Marilou 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 Marilou
What does the name Marilou mean?
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About the name Marilou
Marilou is a girl baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1915 and has accumulated 3K births in the dataset. Marilou's peak popularity came in 1948 when it ranked #914. Use the chart and map above to compare Marilou's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 1948 →
- Names of the 1940s →
- Names starting with "M" →
- Browse all girl 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.