girl's name
Marylou
- Gender Girl
- Syllables 3
- Letters 7
- Popularity Uncommon
- Births on record 20,033
France
#786
2025 births
Marylou is a girl's name with 3 syllables. In 2025 it was given to 28 babies in the United States. It is used consistently but remains uncommon.
- Peaked in 1942, when 376 babies were given the name.
- Its usage has held steady over the past decade.
- Today about 1 in 118,413 babies in the United States is given this name.
- First appears in US birth records in 1898.
- 3 syllables, with the stress on syllable 1.
Marylou over time
Births per decade in the United States, 1890s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1890s | 12 |
| 1900s | 54 |
| 1910s | 313 |
| 1920s | 1,251 |
| 1930s | 2,621 |
| 1940s | 3,141 |
| 1950s | 2,128 |
| 1960s | 1,598 |
| 1970s | 536 |
| 1980s | 517 |
| 1990s | 356 |
| 2000s | 209 |
| 2010s | 228 |
| 2020s (to 2025) | 148 |
How popular is Marylou?
In 2025, Marylou was given to 28 babies in the United States. It is used consistently but remains uncommon.
Where Marylou is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
How Marylou is spelled
Birth registers count each spelling separately, so every one has its own ranking.
| Spelling | What it is | Births on record |
|---|---|---|
| Mary-Lou | Mary-Lou is Marylou written with a hyphen, recorded mostly in Canada. | 402 |
Names that peaked alongside Marylou
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Marylou also like
Names whose popularity has risen and fallen in step with Marylou over the last century — the same taste, a different name.
Sibling names for Marylou
Names from the same era that won't rhyme or share an initial with Marylou — the two things that make a sibling set grate.
Common questions about Marylou
How popular is the name Marylou?
In 2025, Marylou was given to 28 babies in the United States. It is used consistently but remains uncommon.
Is Marylou a girl's or a boy's name?
Marylou is given almost entirely to girls in birth records.
How many syllables are in Marylou?
Marylou has 3 syllables.
When was Marylou most popular?
Marylou peaked in 1942, when 376 babies were given the name. Its usage has held steady over the past decade.
Is Marylou a good name?
That is not something records can settle, but they can tell you what you would be choosing. Marylou currently ranks #786 in the United States. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.