Isla vs Sienna
Isla and Sienna 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.
Scotland · Girls
In 2024, Isla was ranked #2 and Sienna #41 among girls in Scotland.
New Zealand · Girls
In 2023, Isla was ranked #3 and Sienna #53 among girls in New Zealand.
England and Wales · Girls
In 2025, Isla was ranked #4 and Sienna #15 among girls in England and Wales.
New South Wales, Australia · Girls
In 2025, Isla was ranked #4 and Sienna #10 among girls in New South Wales, Australia.
Northern Ireland · Girls
In 2024, Isla was ranked #8 and Sienna #30 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2025, Isla was ranked #13 and Sienna #62 among girls in Republic of Ireland.
Isla and Sienna over time
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.
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.
Isla and Sienna over time
Isla and Sienna appear together in 5 published lists, across 110 years of shared records. Isla held the stronger position in more years in 5 of them, Sienna in 0.
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.
Sienna reached its own highest recorded position earlier in 3 of those lists, Isla in 2. 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 2014, Isla moved ahead of Sienna in New South Wales, Australia · Girls — #19 and #13 the year before became #13 and #15.
- Repeatedly exchanged positions
Isla and Sienna changed places 4 times in Republic of Ireland · Girls between 2002 and 2025, ending at #13 and #62.
- Closest over the longest run
Across 21 shared years in Northern Ireland · Girls, Isla and Sienna averaged 53.6 places apart, ending at #8 and #30.
- Longest-running competitions
Isla and Sienna were both ranked in England and Wales · Girls for 30 years, from 1996 to 2025, ending at #4 and #15.
- Peaked in the same years
Both reached their highest recorded position in Northern Ireland · Girls within 2 years — Isla #1 in 2023, Sienna #30 in 2024.
List by list
England and Wales · Girls30 shared years, 1996–2025
Isla held the stronger position in 26 of those years, Sienna in 4.
Highest recorded here: Isla #3 in 2014, Sienna #12 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2025: Isla #4, Sienna #15.
Republic of Ireland · Girls22 shared years, 2002–2025
Isla held the stronger position in 12 of those years, Sienna in 10.
Highest recorded here: Isla #11 in 2023, Sienna #44 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2025: Isla #13, Sienna #62.
Northern Ireland · Girls21 shared years, 2004–2024
Isla held the stronger position in 17 of those years, Sienna in 4.
Highest recorded here: Isla #1 in 2023, Sienna #30 in 2024.
The order changed in 2008: Isla moved ahead. In 2007 they stood at #131 and #97; by 2008 that had become #95 and #114.
Most recent shared year, 2024: Isla #8, Sienna #30.
New Zealand · Girls19 shared years, 2005–2023
Isla held the stronger position in 16 of those years, Sienna in 3.
Highest recorded here: Isla #1 in 2020, Sienna #23 in 2009.
The order between them never changed and held in this list.
Most recent shared year, 2023: Isla #3, Sienna #53.
New South Wales, Australia · Girls18 shared years, 2008–2025
Isla held the stronger position in 12 of those years, Sienna in 6.
Highest recorded here: Isla #1 in 2023, Sienna #7 in 2009.
The order changed in 2014: Isla moved ahead. In 2013 they stood at #19 and #13; by 2014 that had become #13 and #15.
Most recent shared year, 2025: Isla #4, Sienna #10.
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 Isla
Pairs where Isla shares a published list with another name, each measured inside one registrar's own list.
- Isla vs Arabella
Isla and Arabella both rose over the same years in 3 registrars — England and Wales · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Isla · Arabella · 30 shared years, 1996–2025 · Moved together in several countries
- Isla vs Ada
Both reached their highest recorded position in Northern Ireland · Girls within 2 years — Isla #1 in 2023, Ada #35 in 2023.
Isla · Ada · 11 shared years, 2013–2024 · Peaked in the same years
- Isla vs Alice
Both reached their highest recorded position in New Zealand · Girls within 2 years — Isla #1 in 2020, Alice #31 in 2018.
Isla · Alice · 20 shared years, 2004–2023 · Peaked in the same years
- Isla vs Annie
Both reached their highest recorded position in Northern Ireland · Girls within 2 years — Isla #1 in 2023, Annie #8 in 2022.
Isla · Annie · 21 shared years, 2004–2024 · Peaked in the same years
Other comparisons involving Sienna
Pairs where Sienna shares a published list with another name, each measured inside one registrar's own list.
- Sienna vs Layla
Sienna and Layla both rose over the same years in 4 registrars — England and Wales · Girls; New South Wales, Australia · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Sienna · Layla · 30 shared years, 1996–2025 · Moved together in several countries
- Poppy vs Sienna
Poppy and Sienna both rose over the same years in 4 registrars — England and Wales · Girls; New Zealand · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Poppy · Sienna · 30 shared years, 1996–2025 · Moved together in several countries
- Sienna vs Sofia
Sienna and Sofia both rose over the same years in 4 registrars — England and Wales · Girls; New South Wales, Australia · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Sienna · Sofia · 30 shared years, 1996–2025 · Moved together in several countries
- Sienna vs Arabella
Sienna and Arabella both rose over the same years in 3 registrars — England and Wales · Girls; Northern Ireland · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Sienna · Arabella · 30 shared years, 1996–2025 · Moved together in several countries
Other pairs with the same kind of relationship
Pairs that qualify under the same rule as this one — peaked in the same years.
- Jason vs Aaron
Both reached their highest recorded position in New Zealand · Boys within 2 years — Jason #1 in 1970, Aaron #8 in 1972.
Jason · Aaron · 39 shared years, 1966–2004 · Peaked in the same years
- Ava vs Abigail
Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Ava #1 in 2008, Abigail #36 in 2008.
Ava · Abigail · 44 shared years, 1978–2025 · Peaked in the same years
- Charlotte vs Abigail
Both reached their highest recorded position in New South Wales, Australia · Girls within 2 years — Charlotte #1 in 2012, Abigail #24 in 2010.
Charlotte · Abigail · 24 shared years, 2002–2025 · Peaked in the same years
- Emma vs Abigail
Both reached their highest recorded position in Northern Ireland · Girls within 2 years — Emma #1 in 2003, Abigail #29 in 2005.
Emma · Abigail · 28 shared years, 1997–2024 · Peaked in the same years
Other pairs from Northern Ireland lists
Pairs measured inside Northern Ireland's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.
- Charlotte vs Jodie
In 1997 they stood at #72 and #77 in Northern Ireland · Girls, 5 places apart; by 2021 they were #13 and #446.
Charlotte · Jodie · 23 shared years, 1997–2021 · Started together, ended far apart
- Emily vs Rachael
In 1997 they stood at #32 and #25 in Northern Ireland · Girls, 7 places apart; by 2017 they were #1 and #432.
Emily · Rachael · 19 shared years, 1997–2017 · Started together, ended far apart
- Grace vs Fiona
In 1997 they stood at #57 and #66 in Northern Ireland · Girls, 9 places apart; by 2017 they were #2 and #432.
Grace · Fiona · 18 shared years, 1997–2017 · Started together, ended far apart
- Oliver vs Colin
In 1997 they stood at #100 and #96 in Northern Ireland · Boys, 4 places apart; by 2021 they were #5 and #433.
Oliver · Colin · 21 shared years, 1997–2021 · Started together, ended far apart
Other pairs ranked together in the 2020s
Pairs both ranked in the same published list at some point between 2020 and 2029.
- Grace vs Gemma
In 1996 they stood at #41 and #50 in England and Wales · Girls, 9 places apart; by 2025 they were #27 and #4867.
Grace · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Ella vs Gemma
In 1996 they stood at #56 and #50 in England and Wales · Girls, 6 places apart; by 2025 they were #46 and #4867.
Ella · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Jasmine vs Gemma
In 1996 they stood at #55 and #50 in England and Wales · Girls, 5 places apart; by 2025 they were #102 and #4867.
Jasmine · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Anna vs Gemma
In 1996 they stood at #47 and #50 in England and Wales · Girls, 3 places apart; by 2025 they were #142 and #4867.
Anna · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
Side by side
| Field | Isla | Sienna |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | female | female |
| Meaning | A Scottish place name; not generally treated as having a separate lexical 'meaning' beyond the river/place it names. | From the English word for the orange-red colour, ultimately from the Italian city of Siena, known for its distinctive reddish clay. |
| Origin | Scottish | English (colour/place name) |
| Pronunciation | /ˈaɪlə/ | /si.ˈɛn.ə/ |
| Syllables | 2 | 2 |
| Common variants / nicknames | Islay | Not yet recorded |
| Recorded regional usage | New South Wales, Australia, England and Wales, Northern Ireland, Scotland, Republic of Ireland, New Zealand | New South Wales, Australia, England and Wales, Northern Ireland, Scotland, Republic of Ireland, Norway, New Zealand |
| Most recent popularity observation | England and Wales · Girls #4 (2025) | New South Wales, Australia · Girls #10 (2025) |
| Data Confidence | high | medium |
What the data shows
- Isla is recorded with a Scottish origin, while Sienna is recorded with a English (colour/place name) origin.
- Isla and Sienna both have 2 syllables.
- Isla's recorded meaning differs from Sienna's — see the table above for each.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ.
- The available evidence gives Isla a "high" Data Confidence level and Sienna a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Isla
Popularity journey
First recorded1979
First recorded at #467 among girls in Republic of Ireland in 1979 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded2008–2025
Highest recorded position: #1 among girls in New South Wales, Australia, in 2023 (recorded 2008–2025).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #4 among girls in England and Wales, in 2025.
England and Wales · Girls
Sienna
Popularity journey
First recorded1996
First recorded at #974 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
Highest recorded2003–2025
Highest recorded position: #7 among girls in New South Wales, Australia, in 2009 (recorded 2003–2025).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #15 among girls in England and Wales, in 2025.
England and Wales · Girls