Marylou
How to say it: ma-ree-LOO · /ma.ʁi.ˈlu/
Compound of Mary ('beloved') and Lou; popular mid-20th century - hyphenated as Mary-Lou in US and France.
Marylou was the 3,545th most popular girls’ name in the United States in 2025, given to 28 babies (Social Security Administration). Its busiest decade was the 1930s, its births are up about 10% in ten years, and it is projected to rise to #2,915 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among girls’ names, 2025 | #3,545 |
|---|---|
| Babies born in 2025 | 28 |
| Share of births | 1 in 118,405 |
| Peak decade | 1930s |
| Change over 10 years | +10% |
| Projected rank for 2030 (estimate) | #2,915 |
| In France, 2025 | #361 among girls’ names, 50 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Marylou peaked in the 1930s.
What goes with it
Parents who love Marylou also love
Nicknames
- Mary
- Lou
- Lulu
Honouring a Marylou in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Marylou is about under 1 in 200.
Around the world
This spelling is used in English, French, German, Hebrew.
In France: #361 for girls in 2025.
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