Baby Names US
Unisex name ★ peaked 1970

Marlo

Gender Unisex · 66% girls Rank 2025 #1,839 Trend ↑ Rising 13%
Rank 2025
#1,839
among girls · ↓126 vs 2024
Babies in 2025
204
named Marlo · -7% vs 2024
How common
1 in 14,746
girls born in 2025
Peak year
1970
635 babies
All-time total
10,944
#2,030 all-time among girls
First recorded
1915
in Social Security records

Marlo popularity over time

10,944 babies have been named Marlo since 1915, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.10.20.30.418801900192019401960198020002020GirlsBoys
GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s – 25 25 3 – –
1920s – 102 102 10 +308% –
1930s 36 173 209 21 +105% #3,358
1940s 105 130 235 24 +12% #2,463
1950s 113 253 366 37 +56% #2,491
1960s 1,603 259 1,862 186 +409% #396
1970s 2,546 655 3,201 320 +72% #398
1980s 530 397 927 93 -71% #1,333
1990s 329 291 620 62 -33% #2,670
2000s 461 317 778 78 +25% #2,475
2010s 905 538 1,443 144 +85% #1,767
2020s (to 2025) 636 540 1,176 196 +36% #1,713

Where Marlo is heading

A five-year projection from the recent trend in births per 1,000 girls (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 girls Implied rank
2026 111 0.07 outside top 500
2027 113 0.07 outside top 500
2028 115 0.07 outside top 500
2029 117 0.07 outside top 500
2030 118 0.07 outside top 500

Where Marlo is most popular

Girls named Marlo per 1,000 girls born in each state, 2021–2025. National average: 0.068 per 1,000. Strongest in Ohio, Minnesota, and Wisconsin.

Vs national average
well below below near national above well above no data

All 50 states and DC, sorted by rate. Counts are girls named Marlo born 2021–2025; the per-1,000 rate makes states of different sizes comparable, and the last column shows each state against the national average.

State Girls 2021–2025 Per 1,000 vs national
Ohio 29 0.122 +80%
Minnesota 13 0.120 +77%
Wisconsin 12 0.117 +71%
Michigan 21 0.115 +69%
Pennsylvania 19 0.080 +18%
California 49 0.058 -14%
Colorado 6 0.054 -21%
Alabama 5 0.053 -22%
Illinois 10 0.044 -36%
Washington 6 0.042 -39%
Missouri 5 0.041 -39%
Texas 33 0.041 -40%
New York 16 0.040 -41%
Indiana 5 0.036 -48%
Florida 14 0.033 -52%
New Jersey 5 0.028 -59%
Georgia 5 0.022 -68%
Alaska – – –
Arkansas – – –
Arizona – – –
Connecticut – – –
District of Columbia – – –
Delaware – – –
Hawaii – – –
Iowa – – –
Idaho – – –
Kansas – – –
Kentucky – – –
Louisiana – – –
Massachusetts – – –
Maryland – – –
Maine – – –
Mississippi – – –
Montana – – –
North Carolina – – –
North Dakota – – –
Nebraska – – –
New Hampshire – – –
New Mexico – – –
Nevada – – –
Oklahoma – – –
Oregon – – –
Rhode Island – – –
South Carolina – – –
South Dakota – – –
Tennessee – – –
Utah – – –
Virginia – – –
Vermont – – –
West Virginia – – –
Wyoming – – –

State counts come from the Social Security Administration's state files, which omit any state-year with fewer than five babies of a name, so small states can undercount slightly.

The story of Marlo

Marlo is rare for girls in the United States, ranked #1,839 in 2025 with 109 babies given the name. It is currently rising compared with a decade ago.

Since 1915, 10,944 American babies have been named Marlo, about 66% girls and 34% boys, making it a genuinely unisex name. Its peak came in 1970, when 635 newborns received the name, the signature sound of the 1970s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Marlo stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Marlo?

The median living Marlo is about 46 years old; half are between 15 and 55. An estimated 10 thousand people named Marlo are alive in the United States today.

median 46 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Marlo year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 109 #1,839 95 #1,720
2024 119 #1,713 100 #1,680
2023 100 #1,980 106 #1,637
2022 122 #1,718 76 #2,014
2021 102 #1,938 83 #1,864
2020 84 #2,166 80 #1,861
2019 116 #1,767 77 #1,926
2018 99 #1,994 65 #2,158
2017 75 #2,418 49 #2,586
2016 92 #2,122 72 #2,003
2015 77 #2,397 47 #2,630
2014 88 #2,169 56 #2,334
2013 92 #2,089 47 #2,582
2012 103 #1,926 40 #2,937
2011 79 #2,362 41 #2,882
2010 84 #2,286 44 #2,769
2009 71 #2,611 32 #3,449
2008 77 #2,475 37 #3,144
2007 42 #3,835 33 #3,355
2006 59 #2,931 40 #2,863
2005 42 #3,562 25 #3,782
2004 35 #4,062 24 #3,821
2003 36 #3,849 37 #2,711
2002 32 #4,044 28 #3,235
2001 31 #4,074 29 #3,115
2000 36 #3,635 32 #2,844
1995 30 #3,636 36 #2,240
1990 31 #3,485 29 #2,412
1985 56 #1,964 26 #2,158
1980 95 #1,333 55 #1,254
1975 191 #752 52 #1,175
1970 593 #398 42 #1,289
1965 16 #3,216 25 #1,581
1960 8 #5,027 27 #1,570
1955 9 #4,270 29 #1,440
1950 6 #5,084 16 #1,924
1945 8 #3,580 11 #2,207
1940 – – 13 #2,050
1935 7 #3,633 28 #1,287
1930 – – 13 #2,256
1925 – – 10 #2,865
1920 – – 9 #3,119
1915 – – 7 #3,272
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Famous people named Marlo

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Marlo Thomas Marlo Thomas American actress, producer, and social activist (born 1937) Contemporary

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

Quick answers about Marlo, drawn from the same Social Security data as the charts above.

How old is the average Marlo?

The median living Marlo is about 46 years old. Half of all living Marlos are between 15 and 55 years old.

How many people named Marlo are alive today?

An estimated 10 thousand people named Marlo are alive in the United States, based on 10,944 recorded births and Social Security life tables.

How popular is the name Marlo in 2025?

Marlo ranked #1,839 among girls' names in the United States in 2025, with 109 babies given the name, according to Social Security Administration data.

How many people are named Marlo?

10,944 babies have been named Marlo in the United States since 1915, based on Social Security card applications.

When was the name Marlo most popular?

Marlo peaked in 1970, when 635 newborns received the name.

Is Marlo a boy or girl name?

Marlo is used for both: about 66% of babies named Marlo have been girls and 34% boys.

Is the name Marlo rising or falling?

Marlo is on the rise, noticeably more popular now than a decade ago.

Will Marlo become more popular?

Marlo is trending upward. If the recent trend holds, we project roughly 118 girls named Marlo in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Who are famous people named Marlo?

Well-known people named Marlo include Marlo Thomas (actor).

Names like Marlo

Names that sound and feel close to Marlo: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Marlo with similar names → More names starting with M →