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Denis

Say it: DEN-is/ˈdɛnɪs/

BoyMeans from Dionysius, "of Dionysus"5 letters2 syllables

#232

in Ireland (2025)

#229 with spellings combined

20

babies in 2025

#21

best rank (1964)

7,115

babies since 1964

Down 49

10-year rank change

Denis through the years

Compare with another name →
Denis: babies per year in Ireland, 1964 to 20250100200300400196419701980199020002010202020251998: CSO series changePeak 1965: 350
Denis: rank per year in Ireland, 1964 to 2025#1#10#50#100#250196419701980199020002010202020251998: CSO series change
Denis: per 10,000 boys per year in Ireland, 1964 to 20250255075100125196419701980199020002010202020251998: CSO series change
Babies per 10,000 boys listed by the CSO that year, which evens out changes in the number of births.
Show the numbers
YearBabies (boys)Rank
202520#229
202425#193
202320#220
202229#177
202129#182
202029#180
201939#149
201830#186
201742#145
201645#145
201533#180
201444#148
201340#161
201234#188
201141#165
201036#178
200939#159
200857#133
200752#123
200650#119
200534#145
200439#129
200341#117
200254#95
200145#107
200037#122
199939#110
199832#118
199757#93
199645#112
199568#83
199460#90
199362#93
199267#91
199195#68
1990102#68
198981#79
198898#71
1987104#70
1986135#56
1985135#55
1984152#54
1983159#54
1982165#55
1981174#56
1980182#58
1979187#53
1978173#57
1977183#54
1976197#50
1975210#48
1974238#44
1973236#42
1972269#35
1971284#30
1970277#28
1969261#29
1968301#27
1967303#27
1966303#26
1965350#24
1964347#21

Source: CSO, Irish Babies' Names (VSA50, VSA60), CC BY 4.0.

★ What does Denis mean?

From Dionysius, "of Dionysus"

Greek, from Dionysius through French; in Ireland also used as an English form of Donnchadh.

Say it right

DENis

The story of Denis

Denis comes from the Greek name Dionysius, which means “of Dionysus”, the Greek god of wine. It spread through Christian saints called Dionysius, among them Saint Denis of Paris, and came into English from French. Denis is mostly a British and Irish spelling, while Dennis is more common elsewhere.

In Ireland, Denis was also used as an English form of the Irish name Donnchadh, even though the two are not related. Donnchadh is the source of Donagh and Donnacha.

Denis was a common name in 1960s Ireland. It reached number 21 in 1964, and its biggest year was 1965, with 350 boys. Since then it has fallen slowly, to 20 boys in 2025. The CSO counts Dennis as a separate name. Denis has always been far rarer in Northern Ireland.

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Sources
  • Wiktionary: Denis (English proper noun)
  • Wikipedia: Dennis (given name)
  • CSO VSA50, Boys Names in Ireland with 3 or More Occurrences
  • NISRA, First Forenames Given to Babies Registered in Northern Ireland

At a glance

Similar names

DennisDonalDeclanDermot

Sibling ideas

MairéadNualaBríd

Spellings counted here

Spelling2025All years
Denis207,115

In Northern Ireland

#314 in 2025 with 5 babies. Best rank #231 (2011); 77 babies since 1998.

Source: NISRA, Open Government Licence.

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