Namewise

Cillian vs Mervin

Cillian and Mervincompared 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.

  • Republic of Ireland · Boys

    In 1980, Cillian was ranked #166 and Mervin #321 among boys in Republic of Ireland.

  • England and Wales · Boys

    In 2020, Cillian was ranked #238 and Mervin #3334 among boys in England and Wales.

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 Cillian

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

Side by side

Side-by-side comparison of Cillian, Mervin
FieldCillianMervin
Record typeEditorially researched profileOfficial statistical record (evidence-only)
Gender usagemalemale
MeaningProbably from Old Irish 'cell' (church) combined with a diminutive suffix.Not yet recorded
OriginIrishNot yet recorded
PronunciationNot yet recordedNot yet recorded
Syllables22
Common variants / nicknamesNot yet recordedNot yet recorded
Recorded regional usageGB-ENW, GB-NIR, GB-SCT, IEGB-ENW, IE
Most recent popularity observationRepublic of Ireland · Boys #9 (2025)England and Wales · Boys #3334 (2020)
Pronunciation clarity (demonstration score)Not yet recordedNot yet recorded
Spelling simplicity (demonstration score)82/10088/100
International familiarity (demonstration score)100/10060/100
Data Confidencemediummedium

What the data shows

  • Cillian has a recorded origin (Irish); Mervin does not have one recorded yet.
  • Cillian and Mervin both have 2 syllables.
  • A meaning is recorded for Cillian; Mervin doesn't have one written yet.
  • Both names have recorded usage in GB-ENW, IE.

How each name got here

Cillian

Popularity journey

  1. First recorded1970

    First recorded at #305 among boys in Republic of Ireland in 1970 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Boys

  2. Highest recorded1997–2024

    Highest recorded position: #2 among boys in Northern Ireland, in 2024 (recorded 1997–2024).

    Northern Ireland · Boys

  3. Most recent2025

    Most recently recorded at #217 among boys in England and Wales, in 2025.

    England and Wales · Boys

Mervin

Popularity journey

  1. First recorded1969

    First recorded at #291 among boys in Republic of Ireland in 1969 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Boys

  2. Highest recorded1969–1980

    Highest recorded position: #218 among boys in Republic of Ireland, in 1974 (recorded 1969–1980).

    Republic of Ireland · Boys

  3. Most recent2020

    Most recently recorded at #3334 among boys in England and Wales, in 2020.

    England and Wales · Boys