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Nessa

Say it: NESS-a/ˈnɛsə/

GirlIrishMythology5 letters2 syllables

#239

in Ireland (2025)

#241 with spellings combined

18

babies in 2025

#127

best rank (1975)

889

babies since 1964

Down 49

10-year rank change

Nessa through the years

Compare with another name →
Nessa: babies per year in Ireland, 1964 to 20250204060196419701980199020002010202020251998: CSO series changePeak 1975: 56
Nessa: rank per year in Ireland, 1964 to 2025#1#10#50#100#250#500#1000196419701980199020002010202020251998: CSO series change
Nessa: per 10,000 girls per year in Ireland, 1964 to 202505101520196419701980199020002010202020251998: CSO series change
Babies per 10,000 girls listed by the CSO that year, which evens out changes in the number of births.
Show the numbers
YearBabies (girls)Rank
202518#241
202413#310
202318#227
202216#269
202121#226
202015#275
201922#221
201825#198
201724#211
201617#273
201529#192
201428#189
201321#246
201220#251
201120#258
201018#294
200920#254
200824#230
200713#327
200617#247
200514#263
20047#414
20038#362
200214#254
200112#266
200010#284
19997#323
19984#426
199710#304
19966#393
199511#283
19947#350
19935#415
19928#339
19915#423
199012#268
19893#503
19886#381
19875#417
198616#240
198514#254
19847#365
198319#232
198212#300
198114#272
198017#258
197914#286
197816#253
197710#311
197629#191
197556#127
197429#192
197319#232
19726#352
19719#289
197012#243
19696#322
19689#258
19676#288
19665#310
19656#282
19645#300

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

★ What does Nessa mean?

Uncertain; one old tale explains it as "not gentle"

Irish, from Ness or Neasa, mother of Conchobar mac Nessa; also a short form of Vanessa.

Say it right

NESSa

The story of Nessa

Nessa has two roots. In Ireland it is the name of Ness, or Neasa in modern Irish, the mother of Conchobar mac Nessa, king of Ulster in the Ulster Cycle of tales. Elsewhere it is often simply a short form of Vanessa.

Ness is one of the strongest women in the old stories. One version says she was first called Assa, “gentle”, and became Ní-assa, “not gentle”, after she raised a band of warriors to avenge her foster-fathers. The real origin of the name is not certain, and that story may be a later explanation. She went on to win the throne of Ulster for her son by persuading Fergus mac Róich to give it up for a year.

Nessa has been given in Ireland throughout the CSO records. It was most popular in the 1970s, peaking in 1975 with 56 girls, at number 127. It is still a small, steady choice, with 18 girls in 2025. The Irish spelling Neasa is counted separately.

Say it differently where you're from, or spotted something wrong? Tell us.

Sources
  • Wikipedia: Ness (Irish mythology)
  • Wikipedia: Nessa (given name)
  • Wiktionary: Nessa (English proper noun)
  • CSO VSA60, Girls Names in Ireland with 3 or More Occurrences

At a glance

Similar names

NeasaNiamhTessaVanessa

Sibling ideas

CianConorFergus

Spellings counted here

Spelling2025All years
Nessa18889

In Northern Ireland

#397 in 2025 with 3 babies. Best rank #337 (2024); 16 babies since 2013.

Source: NISRA, Open Government Licence.

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