Katherine vs Susan
Katherine and Susancompared 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 1985, Katherine was ranked #25 and Susan #96 among girls in New South Wales, Australia.
New Zealand · Girls
In 1984, Katherine was ranked #32 and Susan #86 among girls in New Zealand.
Northern Ireland · Girls
In 2017, Katherine was ranked #355 and Susan #432 among girls in Northern Ireland.
Norway · Girls
In 1997, Katherine was ranked #614 and Susan #481 among girls in Norway.
England and Wales · Girls
In 2024, Katherine was ranked #594 and Susan #2253 among girls in England and Wales.
Republic of Ireland · Girls
In 2023, Katherine was ranked #856 and Susan #856 among girls in Republic of Ireland.
Katherine and Susan over time
Katherine and Susan appear together in 6 published lists, across 179 years of shared records. Susan held the stronger position in more years in 4 of them, Katherine in 2.
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.
Susan reached its own highest recorded position earlier in 3 of those lists, Katherine 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 took the other's place near the top
In New South Wales, Australia · Girls, Katherine moved into the top 50 at #32 in 1977 as Susan fell out of it to #51, having been #36 the year before.
- One moved ahead of the other
In 1977, Katherine moved ahead of Susan in New South Wales, Australia · Girls — #38 and #36 the year before became #32 and #51.
- Repeatedly exchanged positions
Katherine and Susan changed places 8 times in Norway · Girls between 1963 and 1997, ending at #614 and #481.
- Closest over the longest run
Across 30 shared years in New South Wales, Australia · Girls, Katherine and Susan averaged 47.4 places apart, ending at #25 and #96.
- Longest-running competitions
Katherine and Susan were both ranked in New South Wales, Australia · Girls for 30 years, from 1956 to 1985, ending at #25 and #96.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Girls within 2 years — Katherine #48 in 1996, Susan #397 in 1996.
List by list
Republic of Ireland · Girls57 shared years, 1964–2023
Katherine held the stronger position in 20 of those years, Susan in 35.
Highest recorded here: Katherine #71 in 1965, Susan #14 in 1968.
The order between them never changed and held in this list.
Most recent shared year, 2023: Katherine #856, Susan #856.
New South Wales, Australia · Girls30 shared years, 1956–1985
Katherine held the stronger position in 9 of those years, Susan in 21.
Highest recorded here: Katherine #24 in 1982, Susan #2 in 1956.
The order changed in 1977: Katherine moved ahead. In 1976 they stood at #38 and #36; by 1977 that had become #32 and #51.
Most recent shared year, 1985: Katherine #25, Susan #96.
England and Wales · Girls29 shared years, 1996–2024
Katherine held the stronger position in 29 of those years, Susan in 0.
Highest recorded here: Katherine #48 in 1996, Susan #397 in 1996.
The order between them never changed and held in this list.
Most recent shared year, 2024: Katherine #594, Susan #2253.
New Zealand · Girls25 shared years, 1955–1984
Katherine held the stronger position in 7 of those years, Susan in 18.
Highest recorded here: Katherine #32 in 1984, Susan #1 in 1955.
The order changed in 1977: Katherine moved ahead. In 1976 they stood at #54 and #38; by 1977 that had become #40 and #47.
Most recent shared year, 1984: Katherine #32, Susan #86.
Norway · Girls24 shared years, 1963–1997
Katherine held the stronger position in 7 of those years, Susan in 17.
Highest recorded here: Katherine #323 in 1983, Susan #219 in 1963.
The order between them never changed and held in this list.
Most recent shared year, 1997: Katherine #614, Susan #481.
Northern Ireland · Girls14 shared years, 1997–2017
Katherine held the stronger position in 14 of those years, Susan in 0.
Highest recorded here: Katherine #56 in 1998, Susan #187 in 1998.
The order between them never changed and held in this list.
Most recent shared year, 2017: Katherine #355, Susan #432.
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 Katherine
Pairs where Katherine shares a published list with another name, each measured inside one registrar's own list.
- Courtney vs Katherine
In 1996 they stood at #52 and #48 in England and Wales · Girls, 4 places apart; by 2024 they were #1894 and #594.
Courtney · Katherine · 29 shared years, 1996–2024 · Started together, ended far apart
- Jodie vs Katherine
In 1996 they stood at #43 and #48 in England and Wales · Girls, 5 places apart; by 2024 they were #1743 and #594.
Jodie · Katherine · 29 shared years, 1996–2024 · Started together, ended far apart
- Gemma vs Katherine
In 1996 they stood at #50 and #48 in England and Wales · Girls, 2 places apart; by 2024 they were #1541 and #594.
Gemma · Katherine · 29 shared years, 1996–2024 · Started together, ended far apart
- Grace vs Katherine
In 1996 they stood at #41 and #48 in England and Wales · Girls, 7 places apart; by 2024 they were #25 and #594.
Grace · Katherine · 29 shared years, 1996–2024 · Started together, ended far apart
Other comparisons involving Susan
Pairs where Susan shares a published list with another name, each measured inside one registrar's own list.
- Susan vs Nora
In 1964 they stood at #22 and #30 in Republic of Ireland · Girls, 8 places apart; by 2023 they were #856 and #95.
Susan · Nora · 57 shared years, 1964–2023 · Started together, ended far apart
- Susan vs Ellen
In 1964 they stood at #22 and #27 in Republic of Ireland · Girls, 5 places apart; by 2023 they were #856 and #156.
Susan · Ellen · 57 shared years, 1964–2023 · Started together, ended far apart
- Susan vs Fiona
In 1964 they stood at #22 and #32 in Republic of Ireland · Girls, 10 places apart; by 2023 they were #856 and #279.
Susan · Fiona · 57 shared years, 1964–2023 · Started together, ended far apart
- Susan vs Eileen
In 1964 they stood at #22 and #17 in Republic of Ireland · Girls, 5 places apart; by 2023 they were #856 and #445.
Susan · Eileen · 57 shared years, 1964–2023 · Started together, ended far apart
Other pairs with the same kind of relationship
Pairs that qualify under the same rule as this one — one took the other's place near the top.
- Sean vs Adam
In Republic of Ireland · Boys, Adam moved into the top 50 at #9 in 2018 as Sean fell out of it to #74, having been #5 the year before.
Sean · Adam · 61 shared years, 1965–2025 · One took the other's place near the top
- Charlie vs Oisin
In Republic of Ireland · Boys, Charlie moved into the top 50 at #10 in 2018 as Oisin fell out of it to #247, having been #11 the year before.
Charlie · Oisin · 33 shared years, 1983–2025 · One took the other's place near the top
- Sean vs Charlie
In Republic of Ireland · Boys, Charlie moved into the top 50 at #10 in 2018 as Sean fell out of it to #74, having been #5 the year before.
Sean · Charlie · 33 shared years, 1983–2025 · One took the other's place near the top
- Sean vs Liam
In Republic of Ireland · Boys, Liam moved into the top 50 at #11 in 2018 as Sean fell out of it to #74, having been #5 the year before.
Sean · Liam · 62 shared years, 1964–2025 · One took the other's place near the top
Other pairs from New South Wales, Australia lists
Pairs measured inside New South Wales, Australia's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.
- Thomas vs Edward
Over 70 shared years in New South Wales, Australia · Boys, Thomas rose about as far as Edward fell — from #44 and #48 in 1952 to #13 and #75 in 2025.
Thomas · Edward · 70 shared years, 1952–2025 · Mirrored each other
- Alexander vs Edward
Over 67 shared years in New South Wales, Australia · Boys, Alexander rose about as far as Edward fell — from #80 and #48 in 1952 to #22 and #75 in 2025.
Alexander · Edward · 67 shared years, 1952–2025 · Mirrored each other
- Thomas vs Andrew
Over 63 shared years in New South Wales, Australia · Boys, Thomas rose about as far as Andrew fell — from #44 and #51 in 1952 to #8 and #89 in 2016.
Thomas · Andrew · 63 shared years, 1952–2016 · Mirrored each other
- William vs Andrew
Over 63 shared years in New South Wales, Australia · Boys, William rose about as far as Andrew fell — from #12 and #51 in 1952 to #2 and #89 in 2016.
William · Andrew · 63 shared years, 1952–2016 · Mirrored each other
Other pairs ranked together in the 1980s
Pairs both ranked in the same published list at some point between 1980 and 1989.
- Grace vs Sinead
In 1964 they stood at #118 and #109 in Republic of Ireland · Girls, 9 places apart; by 2022 they were #2 and #905.
Grace · Sinead · 58 shared years, 1964–2022 · Started together, ended far apart
- Grace vs Therese
In 1964 they stood at #118 and #127 in Republic of Ireland · Girls, 9 places apart; by 2015 they were #8 and #896.
Grace · Therese · 51 shared years, 1964–2015 · Started together, ended far apart
- Sarah vs Lorraine
In 1964 they stood at #46 and #47 in Republic of Ireland · Girls, 1 places apart; by 2018 they were #21 and #896.
Sarah · Lorraine · 50 shared years, 1964–2018 · Started together, ended far apart
- Grace vs Pamela
In 1964 they stood at #118 and #116 in Republic of Ireland · Girls, 2 places apart; by 2017 they were #3 and #873.
Grace · Pamela · 46 shared years, 1964–2017 · Started together, ended far apart
Side by side
| Field | Katherine | Susan |
|---|---|---|
| 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 | |
| Syllables | 4 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | AU-NSW, GB-ENW, GB-NIR, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #608 (2025) | England and Wales · Girls #2253 (2024) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 70/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Katherine has 4 syllables, compared with 2 for Susan.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, IE, NO, NZ.
How each name got here
Katherine
Popularity journey
First recorded1955
First recorded at #100 among girls in New Zealand in 1955 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New Zealand · Girls
Highest recorded1956–2000
Highest recorded position: #24 among girls in New South Wales, Australia, in 1982 (recorded 1956–2000).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #608 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls
Susan
Popularity journey
First recorded1946
First recorded at #239 among girls in Norway in 1946 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1952–1985
Highest recorded position: #1 among girls in New South Wales, Australia, in 1954 (recorded 1952–1985).
New South Wales, Australia · Girls
Most recent2024
Most recently recorded at #2253 among girls in England and Wales, in 2024.
England and Wales · Girls