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Onnie
How to Pronounce Onnie
Pronounced ON-ee /ΛΙni/Medium
Meaning: Onnie is a nineteenth- and early-twentieth-century pet form that was recorded as a full first name, especially in the American South. It usually served as an affectionate short form of longer names ending in -on, such as Alonzo, Vernon or Napoleon, distilling them to a cosy two-syllable nickname. Its meaning depends on the parent name; on its own Onnie is a homely, endearing diminutive rather than a word with a fixed sense.Low
Popularity in the U.S. Β· SSA data
U.S. births per year (Social Security Administration, 1880βpresent). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Onnie belongs to the old habit, strongest in the rural South, of turning tender -ie nicknames into legal first names. It commonly shortened a longer -on name like Alonzo or Vernon. Set down in family Bibles and census rolls as a name in its own right, Onnie carried the affection of the nickname straight into the christening record, its meaning borrowed from whichever fuller name lay behind it.
Onnie was always a scattering, drawing only a couple dozen boys a year even at its high around 1915 before fading. A boy named Onnie then belongs to a great-grandfather's generation now. It reads as a homespun antique pet-form name of the early twentieth century rather than a nursery favourite, and it is essentially unused today.
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Frequently Asked
What does the name Onnie mean?
It is a pet form given as a first name, usually short for a longer -on name like Alonzo or Vernon, inheriting that name's meaning.
How do you pronounce Onnie?
It's said ON-ee /ΛΙni/, two syllables, stress on the first.
Is Onnie a boy or girl name?
Onnie is used here as a boy's name.
Is Onnie a popular name?
No, it has always been rare, an old pet-form name seen in small numbers in the early twentieth century.