About Monroe
Monroe began as a Scottish surname meaning “from the mouth of the Roe,” a river in Northern Ireland. Its two syllables now belong to a given name used for both girls and boys. The surname carries two particularly recognizable American associations: President James Monroe and film actor Marilyn Monroe.
Origin and geographical meaning
The name's roots point to a river mouth rather than to a person's occupation or qualities. The Roe flows in Northern Ireland, although Monroe became established as a Scottish family name. This combination of a Scottish surname and an Irish location is part of its historical background.
Munro is a related surname spelling. Monroe's final e helps display the long o sound familiar from its modern pronunciation, while both forms belong to the same surname tradition. As a given name, Monroe retains the full family-name shape.
The sound is quite different from many other surnames ending in -son or -er. Its rounded final vowel and second-syllable stress make it easy to distinguish from names with a heavier consonant ending.
Presidential history
James Monroe served as the fifth president of the United States from 1817 to 1825. His presidency gave the surname a lasting place in American political history, and Monroe also became a personal name in the broader tradition of using presidential surnames.
The Monroe Doctrine, presented in his annual message to Congress in 1823, warned European powers against further interference in the Western Hemisphere. The policy's long afterlife kept the president's surname prominent well beyond his two terms in office.
Monroe's early American given-name records are predominantly masculine. That older use provides a separate historical strand from the name's much more recent rise for girls.
Marilyn Monroe and film
For many people, the strongest association is Marilyn Monroe. Born Norma Jeane Mortenson in 1926, she fashioned a public identity under the name Marilyn Monroe during the Hollywood studio era. Her surname became one of the most recognizable names in film.
Her work included Gentlemen Prefer Blondes, released in 1953, and Some Like It Hot, released in 1959. The latter placed her in a celebrated screen comedy alongside Tony Curtis and Jack Lemmon. Her name consequently evokes a particular period of American cinema as well as an individual performer.
The presidential and Hollywood associations are both surnames. The given name can bring either to mind, but its geographical meaning remains connected to the Roe rather than to either famous bearer.
Pronunciation and style
Monroe is pronounced mun-ROH in English, with a light first syllable and emphasis on the ending. It has two syllables, and the final e is silent. The related spelling Munro usually preserves that same broad sound pattern.
The full name is already short in speech. Its familiar surname form gives it a different appearance from longer names such as Marilyn, despite the close cultural connection between those two names.
American popularity
Monroe's best American rank for boys was #179 in 1882. Its largest male count came in 1921, with 375 births. In 2025, it was given to 157 boys and ranked #1,262.
Girls' use has followed a different course. Just seven American girls received the name in 2000, rising to 94 in 2010. By 2025, Monroe reached a new high for girls: 658 births and a rank of #467. The name now has a substantial feminine presence alongside its older masculine history.
Sources & methodologyReferences, data & attribution
Existing Wiktionary material is attributed under CC BY-SA 4.0 where applicable. American popularity figures use the local Social Security Administration exact-spelling series; name-sex-year counts below five are omitted.
- Wiktionary: Monroe (English)
- SSA national name data
- Wikidata: Monroe Beardsley
- Wikidata: Monroe Owsley
- Wikidata: Monroe Salisbury
- Wikidata: Monroe Hayward
- Wikidata: Abner Monroe Perrin
- Wikidata: Monroe H. Rosenfeld
- NPS: James Monroe
- National Archives: Monroe Doctrine
- Academy Museum: Marilyn Monroe
- PBS: Marilyn Monroe timeline
Wiktionary material is available under CC BY-SA 4.0.
How popular is Monroe?
In 2025, Monroe ranked #1,262 among boys in the United States, with 157 recorded uses. The U.S. birth records first list this spelling for boys in 1880; its largest annual count was 375 in 1921. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.