Baby name

Marilou

Girl

Origin of the name

Marilou is a blend of Marie and Lou, itself a pet form of Louise.

Classic name

1948 was its best year: 90 births, or 1 baby in 38,356. It has stood the test of time: births were recorded in 101 of the 146 years since 1880. No births recorded in 2025: the name is no longer given, or too rarely to be published.

3,231births since 1880

1940sgeneration

No. 913rank at its peak, in 1948

Where babies named Marilou are born

1948

Year shown on the map

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The darker the blue, the more common Marilou is in the state, compared with its births. White: no births published that year.

Where it is most popular

Compared with the national average, Marilou is most common in Ohio (3.1 times), Illinois (2.9) and California (2), taking into account all births in each state since 1910.

One letter apart

Marylou 13,112
Marilu 2,279

Names from the same era

Regena · Regenia · Phylis · Lonna · Pauletta · Laraine

Born in…

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