Humanverse

Marilyn vs Mark

American parents have registered 1,366,672 Marks since 1880, against 374,857 Marilyns. Mark is still ahead, with 1,416 babies in 2025.

Babies given each name, 1880–2025

Births per year: Marilyn against Mark, 1880 to 2025 0 15k 30k 45k 60k 1880 1900 1920 1940 1960 1980 2000 2020

Marilyn Mark

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Of the 146 years in which either name was published, Mark for 119 years and Marilyn for 27 years. The lead changed hands 2 times.

Side by side

  Marilyn Mark
Total US births 374,8571,366,672
Most in one year 11,90558,860
Babies in 2025 3561,416
Estimated living today 204,0001.1 million
Median age today 7359
Peak year 19471960
Best rank 29th girls6th boys
Rank in 2025 760th244th
First recorded 18991880
Girls / boys 373,791 / 1,0664,496 / 1,362,176

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Marilyns alive today are over 73; half the Marks are over 59. That is 14 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Marilyn Mark
Ireland 9228,607
New Zealand 54623,154
Scotland 7419,843
England and Wales 27711,489
France 5,1602,285
Northern Ireland 31,751
Italy 265876
Switzerland 63656
Belgium 139299

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Marilyn and Mark.