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Marilou
Pronounced MAH-ree-loo /ˈmɑː.ri.luː/Medium
Meaning: A blended name joining Maria/Mary ('bitter; beloved; of the sea') with Lou, short for Louise ('renowned warrior'). Popular in French and Spanish-speaking regions.Low
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Marilou weaves together Maria/Mary and Lou (from Louise, 'renowned warrior'), a compact blend common in French Canada and Latin communities. It carries a warm, vintage charm and is rare in the U.S. today (said 'MAH-ree-loo').
In the U.S. it appears rarely, with a mid-century, heritage feel. Rare, sweet, and vintage.
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Frequently Asked
What does the name Marilou mean?
Marilou blends Maria/Mary with Lou, short for Louise ('renowned warrior').
How do you pronounce Marilou?
It's said MAH-ree-loo /ˈmɑː.ri.luː/ — three syllables, stress on the first.
Is Marilou a boy or girl name?
Marilou is used as a girl's name.
How popular is Marilou?
Marilou is a rare name in the U.S.