Namewise

Cassidy vs Kelly

Cassidy and Kellycompared 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 2012, Cassidy was ranked #451 and Kelly #268 among girls in Northern Ireland.

  • Scotland · Girls

    In 2024, Cassidy was ranked #384 and Kelly #790 among girls in Scotland.

  • Republic of Ireland · Girls

    In 2022, Cassidy was ranked #905 and Kelly #634 among girls in Republic of Ireland.

  • England and Wales · Girls

    In 2024, Cassidy was ranked #776 and Kelly #1672 among girls in England and Wales.

  • England and Wales · Boys

    In 2023, Cassidy was ranked #1461 and Kelly #3523 among boys in England and Wales.

Cassidy and Kelly over time

Cassidy and Kelly appear together in 3 published lists, across 61 years of shared records. Kelly held the stronger position in more years in 2 of them, Cassidy in 1.

The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.

Kelly reached its own highest recorded position earlier in 3 of those lists, and Cassidy 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.

  • Repeatedly exchanged positions

    Cassidy and Kelly changed places 5 times in England and Wales · Boys between 1997 and 2023, ending at #1461 and #3523.

  • Peaked in the same years

    Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Cassidy #465 in 2000, Kelly #50 in 1999.

List by list

  • England and Wales · Girls29 shared years, 19962024

    Cassidy held the stronger position in 14 of those years, Kelly in 15.

    Highest recorded here: Cassidy #580 in 2006, Kelly #74 in 1996.

    The order changed in 2011: Cassidy moved ahead. In 2010 they stood at #586 and #576; by 2011 that had become #629 and #652.

    Most recent shared year, 2024: Cassidy #776, Kelly #1672.

  • England and Wales · Boys21 shared years, 19972023

    Cassidy held the stronger position in 15 of those years, Kelly in 5.

    Highest recorded here: Cassidy #1248 in 2003, Kelly #1454 in 1997.

    The order changed in 2018: Cassidy moved ahead. In 2017 they stood at #3996 and #3449; by 2018 that had become #1533 and #3011.

    Most recent shared year, 2023: Cassidy #1461, Kelly #3523.

  • Republic of Ireland · Girls11 shared years, 19992022

    Cassidy held the stronger position in 0 of those years, Kelly in 11.

    Highest recorded here: Cassidy #465 in 2000, Kelly #50 in 1999.

    The order between them never changed and held in this list.

    Most recent shared year, 2022: Cassidy #905, Kelly #634.

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 Kelly

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

Side by side

Side-by-side comparison of Cassidy, Kelly
FieldCassidyKelly
Record typeOfficial statistical record (evidence-only)Official statistical record (evidence-only)
Gender usageUsed for both boys and girlsfemale
MeaningNot yet recordedNot yet recorded
OriginNot yet recordedNot yet recorded
PronunciationNot yet recorded
Syllables32
Common variants / nicknamesNot yet recordedNot yet recorded
Recorded regional usageGB-ENW, GB-NIR, GB-SCT, IEAU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ
Most recent popularity observationRepublic of Ireland · Girls #718 (2025)Scotland · Girls #790 (2024)
Pronunciation clarity (demonstration score)Not yet recordedNot yet recorded
Spelling simplicity (demonstration score)82/10094/100
International familiarity (demonstration score)100/100100/100
Data Confidencemediummedium

What the data shows

  • Cassidy has 3 syllables, compared with 2 for Kelly.
  • Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.

How each name got here

Cassidy

Popularity journey

  1. First recorded1996

    First recorded at #1168 among girls in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    England and Wales · Girls

  2. Highest recorded2005–2024

    Highest recorded position: #370 among girls in Northern Ireland, in 2008 (recorded 2005–2024).

    Northern Ireland · Girls

  3. Most recent2025

    Most recently recorded at #718 among girls in Republic of Ireland, in 2025.

    Republic of Ireland · Girls

Kelly

Popularity journey

  1. First recorded1964

    First recorded at #93 among girls in New South Wales, Australia in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    New South Wales, Australia · Girls

  2. Highest recorded1970–1998

    Highest recorded position: #3 among girls in New Zealand, in 1978 (recorded 1970–1998).

    New Zealand · Girls

  3. Most recent2024

    Most recently recorded at #1672 among girls in England and Wales, in 2024.

    England and Wales · Girls