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Chelsea vs Leah

Chelsea and Leah compared 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 · Girls

    In 2025, Chelsea was ranked #608 and Leah #55 among girls in Republic of Ireland.

  • New Zealand · Girls

    In 2008, Chelsea was ranked #98 and Leah #66 among girls in New Zealand.

  • New South Wales, Australia · Girls

    In 2019, Chelsea was ranked #100 and Leah #83 among girls in New South Wales, Australia.

  • Northern Ireland · Girls

    In 2024, Chelsea was ranked #407 and Leah #119 among girls in Northern Ireland.

  • England and Wales · Girls

    In 2025, Chelsea was ranked #983 and Leah #183 among girls in England and Wales.

Chelsea and Leah over time

Republic of Ireland · Girls
#10#30#100#30019892025Chelsea #608Leah #551989: Chelsea #408, Leah #1231990: Chelsea #517, Leah #1161991: Chelsea #284, Leah #1141992: Chelsea #220, Leah #841993: Chelsea #139, Leah #941994: Chelsea #148, Leah #661995: Chelsea #130, Leah #571996: Chelsea #105, Leah #381997: Chelsea #78, Leah #331998: Chelsea #56, Leah #271999: Chelsea #54, Leah #272000: Chelsea #81, Leah #142001: Chelsea #106, Leah #122002: Chelsea #134, Leah #152003: Chelsea #121, Leah #102004: Chelsea #122, Leah #92005: Chelsea #142, Leah #92006: Chelsea #130, Leah #92007: Chelsea #144, Leah #162008: Chelsea #222, Leah #132009: Chelsea #358, Leah #152010: Chelsea #245, Leah #162011: Chelsea #258, Leah #152012: Chelsea #264, Leah #242013: Chelsea #286, Leah #252014: Chelsea #242, Leah #272015: Chelsea #362, Leah #342016: Chelsea #585, Leah #302017: Chelsea #396, Leah #292018: Chelsea #629, Leah #362019: Chelsea #716, Leah #362020: Chelsea #495, Leah #462022: Chelsea #559, Leah #502023: Chelsea #856, Leah #432025: Chelsea #608, Leah #55

Higher on the chart is a stronger position. The scale is logarithmic, so the gap from #1 to #10 is drawn as large as the gap from #100 to #1,000.

England and Wales · Girls
#30#100#300#100019962025Chelsea #983Leah #1831996: Chelsea #34, Leah #351997: Chelsea #35, Leah #361998: Chelsea #39, Leah #401999: Chelsea #43, Leah #322000: Chelsea #51, Leah #282001: Chelsea #66, Leah #312002: Chelsea #78, Leah #242003: Chelsea #75, Leah #272004: Chelsea #86, Leah #242005: Chelsea #111, Leah #252006: Chelsea #116, Leah #342007: Chelsea #135, Leah #392008: Chelsea #176, Leah #382009: Chelsea #207, Leah #442010: Chelsea #220, Leah #502011: Chelsea #336, Leah #562012: Chelsea #326, Leah #642013: Chelsea #350, Leah #712014: Chelsea #473, Leah #782015: Chelsea #455, Leah #982016: Chelsea #485, Leah #992017: Chelsea #514, Leah #992018: Chelsea #767, Leah #1362019: Chelsea #881, Leah #1232020: Chelsea #840, Leah #1432021: Chelsea #779, Leah #1502022: Chelsea #857, Leah #1562023: Chelsea #981, Leah #1692024: Chelsea #1230, Leah #1842025: Chelsea #983, Leah #183

Higher on the chart is a stronger position. The scale is logarithmic, so the gap from #1 to #10 is drawn as large as the gap from #100 to #1,000.

Chelsea and Leah over time

Chelsea and Leah appear together in 5 published lists, across 109 years of shared records. Leah held the stronger position in more years in 3 of them, Chelsea in 2.

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.

Chelsea reached its own highest recorded position earlier in 5 of those lists, and Leah 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.

List by list

  • Republic of Ireland · Girls35 shared years, 1989–2025

    Chelsea held the stronger position in 0 of those years, Leah in 35.

    Highest recorded here: Chelsea #54 in 1999, Leah #9 in 2004.

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

    Most recent shared year, 2025: Chelsea #608, Leah #55.

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

    Chelsea held the stronger position in 3 of those years, Leah in 27.

    Highest recorded here: Chelsea #34 in 1996, Leah #24 in 2002.

    The order changed in 1999: Leah moved ahead. In 1998 they stood at #39 and #40; by 1999 that had become #43 and #32.

    Most recent shared year, 2025: Chelsea #983, Leah #183.

  • New Zealand · Girls18 shared years, 1987–2008

    Chelsea held the stronger position in 12 of those years, Leah in 6.

    Highest recorded here: Chelsea #19 in 1994, Leah #48 in 2007.

    The order changed in 2001: Leah moved ahead. In 2000 they stood at #55 and #69; by 2001 that had become #78 and #58.

    Most recent shared year, 2008: Chelsea #98, Leah #66.

  • Northern Ireland · Girls18 shared years, 1997–2024

    Chelsea held the stronger position in 0 of those years, Leah in 18.

    Highest recorded here: Chelsea #35 in 1998, Leah #10 in 2005.

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

    Most recent shared year, 2024: Chelsea #407, Leah #119.

  • New South Wales, Australia · Girls8 shared years, 2001–2019

    Chelsea held the stronger position in 7 of those years, Leah in 1.

    Highest recorded here: Chelsea #28 in 2002, Leah #78 in 2012.

    The order changed in 2019: Leah moved ahead. In 2018 they stood at #59 and #85; by 2019 that had become #100 and #83.

    Most recent shared year, 2019: Chelsea #100, Leah #83.

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 Chelsea

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

Other comparisons involving Leah

Pairs where Leah 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 England and Wales lists

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

England and Wales 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 Chelsea, Leah
FieldChelseaLeah
Record typeOfficial statistical record (evidence-only)Editorially researched profile
Gender usagefemalefemale
MeaningNot yet recordedLikely derives from a Hebrew word meaning 'weary, grieved'; an alternative theory suggests a connection to Akkadian 'littu' ('cow'). In the Old Testament, Leah was Jacob's first wife.
OriginNot yet recordedBiblical Hebrew, etymology disputed
Pronunciation/ˈliː.ə/
Syllables21
Common variants / nicknamesNot yet recordedNot yet recorded
Recorded regional usageNew South Wales, Australia, England and Wales, Northern Ireland, Republic of Ireland, New ZealandNew South Wales, Australia, England and Wales, Northern Ireland, Scotland, Republic of Ireland, Norway, New Zealand
Most recent popularity observationRepublic of Ireland · Girls #608 (2025)Norway · Girls #12 (2025)
Data Confidencemediummedium

What the data shows

  • Leah has a recorded origin (Biblical Hebrew, etymology disputed); Chelsea does not have one recorded yet.
  • Chelsea has 2 syllables, compared with 1 for Leah.
  • A meaning is recorded for Leah; 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

  1. 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

  2. Highest recorded1987–2008

    Highest recorded position: #19 among girls in New Zealand, in 1994 (recorded 1987–2008).

    New Zealand · Girls

  3. Most recent2025

    Most recently recorded at #983 among girls in England and Wales, in 2025.

    England and Wales · Girls

Leah

Popularity journey

  1. First recorded1966

    First recorded at #310 among girls in Republic of Ireland in 1966 — the earliest year that source publishes this name, not necessarily the earliest it was used.

    Republic of Ireland · Girls

  2. Highest recorded1966–2025

    Highest recorded position: #9 among girls in Republic of Ireland, in 2004 (recorded 1966–2025).

    Republic of Ireland · Girls

  3. Most recent2025

    Most recently recorded at #183 among girls in England and Wales, in 2025.

    England and Wales · Girls