Namewise

Julia vs Siobhán

Julia and Siobháncompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.

Head to head

Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.

  • Northern Ireland · Girls

    In 2019, Julia was ranked #94 and Siobhán #336 among girls in Northern Ireland.

  • Republic of Ireland · Girls

    In 2025, Julia was ranked #118 and Siobhán #885 among girls in Republic of Ireland.

  • England and Wales · Girls

    In 2025, Julia was ranked #244 and Siobhán #3705 among girls in England and Wales.

Julia and Siobhán over time

Julia and Siobhán appear together in 3 published lists, across 100 years of shared records. Julia held the stronger position in more years in 2 of them, Siobhán in 1.

The order between them changed and held in 3 of those lists — a change in that published list, never a claim that one name displaced the other.

Siobhán reached its own highest recorded position earlier in 3 of those lists, and Julia in none. Each position is a place inside its own list, so this compares when they peaked and never how high.

Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.

How this pair is related

The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.

  • One moved ahead of the other

    In 2005, Julia moved ahead of Siobhán in Republic of Ireland · Girls — #149 and #97 the year before became #97 and #117.

  • Longest-running competitions

    Julia and Siobhán were both ranked in England and Wales · Girls for 30 years, from 1996 to 2025, ending at #244 and #3705.

  • Started together, ended far apart

    In 1964 they stood at #42 and #35 in Republic of Ireland · Girls, 7 places apart; by 2025 they were #118 and #885.

List by list

  • Republic of Ireland · Girls57 shared years, 1964–2025

    Julia held the stronger position in 16 of those years, Siobhán in 41.

    Highest recorded here: Julia #31 in 2009, Siobhán #15 in 1971.

    The order changed in 2005: Julia moved ahead. In 2004 they stood at #149 and #97; by 2005 that had become #97 and #117.

    Most recent shared year, 2025: Julia #118, Siobhán #885.

  • England and Wales · Girls30 shared years, 1996–2025

    Julia held the stronger position in 24 of those years, Siobhán in 6.

    Highest recorded here: Julia #77 in 2010, Siobhán #138 in 1996.

    The order changed in 2003: Julia moved ahead. In 2002 they stood at #333 and #313; by 2003 that had become #281 and #423.

    Most recent shared year, 2025: Julia #244, Siobhán #3705.

  • Northern Ireland · Girls13 shared years, 1997–2019

    Julia held the stronger position in 9 of those years, Siobhán in 4.

    Highest recorded here: Julia #69 in 2008, Siobhán #133 in 1997.

    The order changed in 2005: Julia moved ahead. In 2004 they stood at #316 and #273; by 2005 that had become #226 and #278.

    Most recent shared year, 2019: Julia #94, Siobhán #336.

Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.

Where to go next

Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.

Other comparisons involving Julia

Pairs where Julia shares a published list with another name, each measured inside one registrar's own list.

Other comparisons involving Siobhán

Pairs where Siobhán shares a published list with another name, each measured inside one registrar's own list.

Other pairs with the same kind of relationship

Pairs that qualify under the same rule as this one — started together, ended far apart.

All started together, ended far apart→

Other pairs from Republic of Ireland lists

Pairs measured inside Republic of Ireland's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.

Republic of Ireland overview→

Other pairs ranked together in the 2020s

Pairs both ranked in the same published list at some point between 2020 and 2029.

The 2020s across all registrars→

Side by side

Side-by-side comparison of Julia, Siobhán
FieldJuliaSiobhán
Record typeEditorially researched profileEditorially researched profile
Gender usagefemalefemale
MeaningThe feminine form of the Roman family name Julius — borne by Julia Augusta and Julia the Elder, and by an early Christian martyr and patron saint of Corsica.Shares the meaning of Joan/Jehanne: commonly interpreted as 'God is gracious'.
OriginThe feminine counterpart within the Roman gens Julia, the family name Julius belonged toIrish
Pronunciation/ˈjʉː.lɪ.a//ʃɪˈvɔːn/
Syllables21
Common variants / nicknamesNot yet recordedChevonne, Shivaun
Recorded regional usageAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZGB-ENW, GB-NIR, IE
Most recent popularity observationNorway · Girls #85 (2025)Republic of Ireland #90 (2025)
Pronunciation clarity (demonstration score)90/10090/100
Spelling simplicity (demonstration score)94/10082/100
International familiarity (demonstration score)100/100100/100
Data Confidencemediumhigh

What the data shows

  • Julia is recorded with a The feminine counterpart within the Roman gens Julia, the family name Julius belonged to origin, while Siobhán is recorded with a Irish origin.
  • Julia has 2 syllables, compared with 1 for Siobhán.
  • Julia's recorded meaning differs from Siobhán's — see the table above for each.
  • Both names have recorded usage in GB-ENW, GB-NIR, IE.
  • The available evidence gives Julia a "medium" Data Confidence level and Siobhán a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.

How each name got here

Julia

Popularity journey

  1. First recorded1945

    First recorded at #345 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Norway · Girls

  2. Highest recorded1970–2001

    Highest recorded position: #26 among girls in New Zealand, in 1983 (recorded 1970–2001).

    New Zealand · Girls

  3. Most recent2025

    Most recently recorded at #244 among girls in England and Wales, in 2025.

    England and Wales · Girls

Siobhán

Popularity journey

  1. First recorded1964

    First recorded at #35 among girls in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Girls

  2. Highest recorded1964–2025

    Highest recorded position: #15 among girls in Republic of Ireland, in 1971 (recorded 1964–2025).

    Republic of Ireland · Girls

  3. Most recent2025

    Most recently recorded at #3705 among girls in England and Wales, in 2025.

    England and Wales · Girls