Marylou
- US rank
- #4,758
- Syllables
- 3
- Peak
- #350 in 1937
28 babies were named Marylou in the US in 2025. It has climbed 729 places in five years.
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US births per million girls, 1898–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Marylou you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 57,471 baby girls born in the US in 2025 was named Marylou, 28 babies in all. In a typical school of 500 kids, your Marylou would very likely be the only one.
- HistoryMarylou first shows up in US birth records in 1898, the first year at least 5 babies got it. It has been in use for 127 years since.
- Best yearIt was far more popular in 1937, when it ranked #350. Today it's #4,758, so it could be due a comeback.
- TrendMarylou has climbed 729 places in the US rankings over the last five years and now sits at #4,758. Fast risers like this often keep climbing, so expect to hear it more.
About the name Marylou
Marylou is a girl name of American origin. It has 7 letters and 3 syllables, starting with M and ending in “-lou”. US birth records list Marylou for girls from 1898 to 2025, in 126 of those 128 years. Its best year was 1937, when it ranked #350 among girl names. In 2025 it ranked #4,758, with 28 babies.
Origin:American names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1890s | 25 | 40,568 girls |
| 1900s | 18 | 55,096 girls |
| 1910s | 36 | 28,082 girls |
| 1920s | 106 | 9,455 girls |
| 1930s | 246 | 4,060 girls |
| 1940s | 222 | 4,500 girls |
| 1950s | 111 | 8,979 girls |
| 1960s | 85 | 11,751 girls |
| 1970s | 34 | 29,053 girls |
| 1980s | 30 | 33,212 girls |
| 1990s | 20 | 50,607 girls |
| 2000s | 11 | 88,417 girls |
| 2010s | 13 | 76,746 girls |
| 2020s | 15 | 65,646 girls |
Other spellings of Marylou
More American girl names
- Girl name: Lainey · possibly light
- Girl name: Daisy · day's eye
- Girl name: Josie · he will add
- Unisex name: Kinsley · king's meadow
- Girl name: Sienna · from Siena
- Unisex name: Brooklyn · from Brooklyn, New York
- Girl name: Summer · summer
- Unisex name: Stevie · crown
Questions about the name Marylou
What is the origin of the name Marylou?
Marylou has American roots in our records. Other American names include Lainey, Daisy, Josie.
Is Marylou a boy or girl name?
Marylou is a girl name.
How popular is the name Marylou?
Marylou ranked #4,758 for US girls in 2025, given to 28 babies. Its best year was 1937 (#350).