Names › Boy › O › Osian
Boy name · Welsh origin

Osian

Welsh origin · 100% boys · 165 born in 2025

Welsh form of Irish Oisin, from os, "deer" — little deer. Oisin was the poet son of Fionn mac Cumhaill in Irish legend.

MeaningLittle deer
OriginWelsh
Syllables2
NicknamesOsh
Recorded in England & Wales3,310
Born in 2025165
Themes: nature animal

Popularity, 1880–2025

Babies named Osian per year · SSA, ONS, NRS, CSO, INSEE and SSB
18802025
England & WalesScotlandeach scaled to its own peak
  • Peak year2022 · 178
  • Born in 2025165
  • All time3,310
  • England & Wales, 2025#276 · 165

How popular is Osian?

Osian was given to 165 babies in England and Wales in 2025. Its best year was 2022, with 178 registrations. The name is absent from American records, so there is no US curve to compare it against.

Names that sound like Osian

Phonetic similarity, 0–1
  1. Dorian0.75
  2. Brian0.65
  3. Ian0.65
  4. Elian0.65
  5. Kian0.65
  6. Rian0.65
  7. Arian0.65
  8. Ocean0.65

Middle names for Osian

Ranked by flow score
  1. Osian John0.77
  2. Osian Lee0.77
  3. Osian Bryce0.76
  4. Osian Ross0.76
  5. Osian Quinn0.76
  6. Osian Jude0.76

Sibling names for Osian

Names registered alongside it, on a 30-year window
  1. Amirahsister · 0.99
  2. Lukabrother · 0.99
  3. Dianasister · 0.99
  4. Fatimahsister · 0.99
  5. Cobybrother · 0.99
  6. Hectorbrother · 0.99

In the British record

England and Wales, 1996–2025
  1. First recorded1996
  2. Peak year2022 · 178
  3. Years recorded29 of 30
  4. All time3,310

With a common surname

Flow score against the most-used American surnames · try your own
  1. Osian Anderson0.74
  2. Osian White0.72
  3. Osian Reyes0.72
  4. Osian Moore0.72
  5. Osian Lee0.72
  6. Osian Hill0.72

How to read these numbers

Every score on this page is explained
  1. Phonetic similarity0–1
  2. Middle-name flow0–1
  3. Sibling fit0–1
  4. Living population estimatemethod
  5. PronunciationCMU dictionary

Sources for Osian

Every figure on this page is public record
  1. England & Wales1996–2025
  2. Scotland1974–2020

Source: Office for National Statistics, baby names for England and Wales. Contains public sector information licensed under the Open Government Licence v3.0. Scores on this page are explained in the methodology.