Marilou

Girl name

Marilou has been given to 3,231 babies in the U.S. since 1915. It peaked in 1948.

Popularity over time births per year, 1880–2025

Hover or tap the chart to read any year.

Total babies

3,231

Peak year

1948 (90 babies)

Rank in 2025

Below top 1000

First recorded

1915

10-year trend

New / returning

Gender split

All girls

Spellings & variants

Names one letter away from Marilou — alternate spellings parents actually use.

Marylougirl

13,112 babies since 1898

Names with a similar vibe

Same primary gender, peaked around the same years, and roughly as common as Marilou.

Arnettagirl

3,248 babies since 1894

Johnettagirl

3,201 babies since 1892

Corlissgirl

3,192 babies since 1913

Kathyrngirl

3,172 babies since 1882

Nanciegirl

3,296 babies since 1887

Pamellagirl

3,166 babies since 1928

Trudiegirl

3,148 babies since 1882

Dayleunisex

3,320 babies since 1912

Marilou vs Arnetta ⚖Marilou vs Johnetta ⚖Marilou vs Corliss ⚖Marilou vs Kathyrn ⚖

Sibling name ideas for Marilou

Same era and popularity as Marilou, avoiding matching initials or rhymes.

Sisters

Arnetta Johnetta Corliss Kathyrn

Brothers

Curley Rand Eusebio Garold

FAQ

How popular is the name Marilou?

Marilou has been given to 3,231 babies in the U.S. since 1915. It ranked below the top 1000 in 2025.

When did the name Marilou peak?

Marilou peaked in 1948, when 90 babies were given the name.

Is Marilou a girl or boy name?

Marilou is primarily a girl name (100% of babies named Marilou are girls).

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