Denny
Gender: Boy
Meaning: Fiery one, little fire
Origin: Irish/Gaelic
Popularity: Ranked #4284 in 2025 with 24 babies born.
History: A variant or related form of Aden. Shares the meaning 'Fiery one, little fire.'
Similar names: deen, deena, denni, daena, dean, deana, deann, deanna
Name length: 5 letters
How common is Denny? About 1 in 138,688 babies born in 2025 were named Denny, or roughly 0.1 per day in the United States.
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Frequently asked about Denny
What does the name Denny mean?
Denny means “Fiery one, little fire” from Irish/Gaelic roots.
What is the origin of the name Denny?
Denny has Irish/Gaelic origin. The traditional meaning is “Fiery one, little fire”.
How popular is Denny?
Denny ranked #4249 in 2025 — given to 24 babies that year.
When was Denny most popular?
Denny peaked in 1947 with 440 babies registered that year.
Is Denny a boy or girl name?
Denny is predominantly a boys' name — over 90% of Dennys in registered births are male.
Is the name Denny rising or falling in popularity?
Denny has risen 8122 spots in the rankings over the last 5 years — from #12371 in 2020 to #4249 in 2025.
How long has Denny been recorded?
Denny appears in birth records across 123 years — from 1889 through 2025.