Marlo Boy & girl

How popular is Marlo?

#1,833 girl name in 2025

109 baby girls were named Marlo in the US in 2025, making it the 1833rd most popular girl name. Another 95 boys got the name (#1,708 for boys).

Compare with other names
9,990living people named Marlo (est.)
47median age of people named Marlo
10,944babies named Marlo since 1880
1 in 16,252US babies born in 2025

Marlo popularity over time

0300600 18801900192019401960198020002020

Boys Girls

Rank in 2025#1,833 for girls (▼ 125 from 2024)
Babies in 2025109 girls, 95 boys
10-year trendRising (+42% babies vs 2015)
Earlier ranks#2,382 in 2015, #2,156 in 2020
Peak year1970 (593 girls)
Highest rank#395 in 1968
First recorded1931
Boys vs girls (last 10 years)44% boys, 56% girls
Chance a classmate shares it0.1% in a class of 25 kids born in 2025

Where Marlo is most popular

Babies named Marlo per 1,000 girls born in each state, 2021 to 2025. Darker means more common.

  1. Ohio: 0.1 per 1,000 (29 girls)
  2. Minnesota: 0.1 per 1,000 (13 girls)
  3. Wisconsin: 0.1 per 1,000 (12 girls)
  4. Michigan: 0.1 per 1,000 (21 girls)
  5. Pennsylvania: 0.1 per 1,000 (19 girls)

Marlo by decade

DecadeBaby girlsBest rank
1930s36#3,179
1940s105#2,415
1950s113#2,449
1960s1,603#395
1970s2,546#396
1980s530#1,328
1990s329#2,645
2000s461#2,462
2010s905#1,763
2020s636#1,708

Girl names about as popular as Marlo

Questions

Is Marlo a boy or girl name?
Marlo is used for both. Over the last 10 years, 44% of babies named Marlo were boys and 56% were girls.
How popular is the name Marlo?
109 baby girls were named Marlo in the US in 2025, making it the 1833rd most popular girl name. Another 95 boys got the name (#1,708 for boys).
When was Marlo most popular?
Marlo peaked in 1970, when 593 girls were given the name. Its highest rank was #395 in 1968.
How many people are named Marlo?
10,944 babies have been named Marlo in the US since 1880. We estimate about 9,990 of them are alive in 2026, with a median age of 47.
Where is Marlo most popular?
From 2021 to 2025, Marlo was most common in Ohio, at 0.1 of every 1,000 girls born there.

Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.