Kacey vs Lydia
Kacey and Lydiacompared 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, Kacey was ranked #336 and Lydia #86 among girls in Northern Ireland.
Scotland · Girls
In 2024, Kacey was ranked #638 and Lydia #157 among girls in Scotland.
England and Wales · Girls
In 2024, Kacey was ranked #2115 and Lydia #174 among girls in England and Wales.
Republic of Ireland · Girls
In 2023, Kacey was ranked #555 and Lydia #364 among girls in Republic of Ireland.
Kacey and Lydia over time
Kacey and Lydia appear together in 3 published lists, across 69 years of shared records. Lydia held the stronger position in more years in 3 of them, Kacey in 0.
In none of those lists did their order change and stay changed.
Lydia reached its own highest recorded position earlier in 2 of those lists, Kacey in 1. 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
Kacey and Lydia changed places 4 times in Northern Ireland · Girls between 2002 and 2019, ending at #336 and #86.
List by list
England and Wales · Girls29 shared years, 1996–2024
Kacey held the stronger position in 0 of those years, Lydia in 29.
Highest recorded here: Kacey #130 in 2006, Lydia #50 in 1998.
The order between them never changed and held in this list.
Most recent shared year, 2024: Kacey #2115, Lydia #174.
Republic of Ireland · Girls25 shared years, 1994–2023
Kacey held the stronger position in 4 of those years, Lydia in 21.
Highest recorded here: Kacey #138 in 2004, Lydia #159 in 2001.
The order between them never changed and held in this list.
Most recent shared year, 2023: Kacey #555, Lydia #364.
Northern Ireland · Girls15 shared years, 2002–2019
Kacey held the stronger position in 2 of those years, Lydia in 12.
Highest recorded here: Kacey #108 in 2003, Lydia #73 in 2008.
The order between them never changed and held in this list.
Most recent shared year, 2019: Kacey #336, Lydia #86.
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.
Side by side
| Field | Kacey | Lydia |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Scotland · Girls #638 (2024) | Norway · Girls #142 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Kacey and Lydia both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Kacey
Popularity journey
First recorded1994
First recorded at #502 among girls in Republic of Ireland in 1994 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded2002–2019
Highest recorded position: #108 among girls in Northern Ireland, in 2003 (recorded 2002–2019).
Northern Ireland · Girls
Most recent2024
Most recently recorded at #2115 among girls in England and Wales, in 2024.
England and Wales · Girls
Lydia
Popularity journey
First recorded1946
First recorded at #380 among girls in Norway in 1946 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1996–2024
Highest recorded position: #50 among girls in England and Wales, in 1998 (recorded 1996–2024).
England and Wales · Girls
Most recent2025
Most recently recorded at #142 among girls in Norway, in 2025.
Norway · Girls