Chelsea vs Rebecca
Chelsea and Rebeccacompared 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.
New South Wales, Australia · Girls
In 2008, Chelsea was ranked #26 and Rebecca #94 among girls in New South Wales, Australia.
New Zealand · Girls
In 2008, Chelsea was ranked #98 and Rebecca #61 among girls in New Zealand.
Republic of Ireland · Girls
In 2025, Chelsea was ranked #608 and Rebecca #141 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Chelsea was ranked #1230 and Rebecca #315 among girls in England and Wales.
Northern Ireland · Girls
In 2024, Chelsea was ranked #407 and Rebecca #337 among girls in Northern Ireland.
Chelsea and Rebecca over time
Chelsea and Rebecca appear together in 5 published lists, across 118 years of shared records. Rebecca held the stronger position in more years in 4 of them, Chelsea in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Rebecca reached its own highest recorded position earlier in 3 of those lists, Chelsea 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.
- One moved ahead of the other
In 2001, Chelsea moved ahead of Rebecca in New South Wales, Australia · Girls — #25 and #21 the year before became #30 and #33.
- Closest over the longest run
Across 20 shared years in New Zealand · Girls, Chelsea and Rebecca averaged 33.8 places apart, ending at #98 and #61.
- Longest-running competitions
Chelsea and Rebecca were both ranked in Republic of Ireland · Girls for 35 years, from 1989 to 2025, ending at #608 and #141.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Girls within 2 years — Chelsea #34 in 1996, Rebecca #8 in 1996.
List by list
Republic of Ireland · Girls35 shared years, 1989–2025
Chelsea held the stronger position in 0 of those years, Rebecca in 35.
Highest recorded here: Chelsea #54 in 1999, Rebecca #7 in 1995.
The order between them never changed and held in this list.
Most recent shared year, 2025: Chelsea #608, Rebecca #141.
England and Wales · Girls29 shared years, 1996–2024
Chelsea held the stronger position in 0 of those years, Rebecca in 29.
Highest recorded here: Chelsea #34 in 1996, Rebecca #8 in 1996.
The order between them never changed and held in this list.
Most recent shared year, 2024: Chelsea #1230, Rebecca #315.
New Zealand · Girls20 shared years, 1987–2008
Chelsea held the stronger position in 1 of those years, Rebecca in 19.
Highest recorded here: Chelsea #19 in 1994, Rebecca #4 in 1988.
The order between them never changed and held in this list.
Most recent shared year, 2008: Chelsea #98, Rebecca #61.
Northern Ireland · Girls18 shared years, 1997–2024
Chelsea held the stronger position in 0 of those years, Rebecca in 18.
Highest recorded here: Chelsea #35 in 1998, Rebecca #2 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2024: Chelsea #407, Rebecca #337.
New South Wales, Australia · Girls16 shared years, 1993–2008
Chelsea held the stronger position in 8 of those years, Rebecca in 8.
Highest recorded here: Chelsea #23 in 1999, Rebecca #4 in 1993.
The order changed in 2001: Chelsea moved ahead. In 2000 they stood at #25 and #21; by 2001 that had become #30 and #33.
Most recent shared year, 2008: Chelsea #26, Rebecca #94.
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 | Chelsea | Rebecca |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | female |
| Meaning | Not yet recorded | Traditionally associated with concepts of 'joining', 'tying', or a 'team/yoke' — a binding or connecting sense, from a Semitic root about fastening things together. |
| Origin | Not yet recorded | Biblical Hebrew, via Greek Rhebekka |
| Pronunciation | /rəˈbɛkə/ | |
| Syllables | 2 | 3 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, IE, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #608 (2025) | Republic of Ireland · Girls #141 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 82/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Rebecca has a recorded origin (Biblical Hebrew, via Greek Rhebekka); Chelsea does not have one recorded yet.
- Chelsea has 2 syllables, compared with 3 for Rebecca.
- A meaning is recorded for Rebecca; Chelsea doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, IE, NZ.
How each name got here
Chelsea
Popularity journey
First recorded1987
First recorded at #65 among girls in New Zealand in 1987 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New Zealand · Girls
Highest recorded1987–2008
Highest recorded position: #19 among girls in New Zealand, in 1994 (recorded 1987–2008).
New Zealand · Girls
Most recent2025
Most recently recorded at #608 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls
Rebecca
Popularity journey
First recorded1955
First recorded at #440 among girls in Norway in 1955 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1966–2008
Highest recorded position: #1 among girls in New South Wales, Australia, in 1976 (recorded 1966–2008).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #485 among girls in Norway, in 2025.
Norway · Girls