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Monnie

♀ Girl

How to Pronounce Monnie

Pronounced MON-ee /ˈmɑn.i/Medium

Meaning: Monnie is a vintage diminutive, most often of Mona — from Irish Muadhnait, 'noble' — or of Monica; used as a stand-alone name in the affectionate -ie fashion of the late 1800s and early 1900s.Low

In 30 seconds: Monnie is a cozy old-fashioned pet form of Mona or Monica, carrying Mona's 'noble' behind it — a genuine but rare vintage name (said 'MON-ee').

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Origin LowIrish, English

MeaningMonnie is a vintage diminutive, most often of Mona — from Irish Muadhnait, 'noble' — or of Monica; used as a stand-alone name in the affectionate -ie fashion of the late 1800s and early 1900s.

U.S. rank (2021)#16900 ↘ Falling

2021 U.S. births5 girls (0.00% of U.S. girls)

Peak year1922

Total births (all-time)≈ 1,861

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Monnie is a warm short form, usually of Mona — Irish Muadhnait, 'noble' — or of Monica. Worn as a full name in the plant-and-pet-name era around 1900, it has the soft -ie ending typical of that generation's girls' names.

It faded through the twentieth century and now reads as distinctly vintage. A girl named Monnie at its peak would belong to the World War I generation.

Did you know? The Mona often behind Monnie comes from the Irish Muadhnait, a diminutive meaning 'noble', giving this homey name a dignified root.

Overall data confidence 40%

References — Mona / Monica — parent names; Mona from Irish 'noble'

Variations

MonaMonieMonnye

Nicknames

Mon

Famous Bearers

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If you like Monnie…

Mona— the likely parent name, 'noble'

Minnie— a like homey -ie vintage girl's name

Connie— another affectionate period nickname-name

Monica— a fuller name Monnie can shorten

Explore names like Monnie

By themevintage short nickname-name

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Frequently Asked

What does the name Monnie mean?

Monnie is a vintage short form, usually of Mona, from Irish for 'noble', or of Monica.

How do you pronounce Monnie?

It's said MON-ee /ˈmɑn.i/ — 2 syllables, stress on the first.

Is Monnie a boy or girl name?

Monnie is used as a girl's name in the U.S.

How popular is Monnie?

Monnie is a rare, old-fashioned girl's name in the U.S., most common in the early twentieth century.