UK girl's name
Mary-Kate
For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.
Mary-Kate is a girl's name in the UK records. People looking for Mary-Kate popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #4843, with 4 babies registered with the name. Its strongest year in the published records was 2003, with 15 births.
This profile covers 206 England and Wales registrations across 28 recorded years from 1996 to 2024. The figures come from ONS England and Wales and NISRA Northern Ireland, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
The latest count is about 27% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 274 living people in the UK are called Mary-Kate. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2025 or 2026.
Key insights
- • Mary-Kate ranked #4843 for girls in England and Wales in 2024, with 4 registrations.
- • The name peaked in 2003, when 15 girls were registered as Mary-Kate.
- • Mary-Kate ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #354 in 2022.
- • About 274 living people in the UK are estimated to have Mary-Kate as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4843
2024
Births in 2024
4
Latest year
Peak year
2003
15 births
Estimated living
274
2026
Popularity
Mary-Kate over time
The chart below shows babies named Mary-Kate registered in England and Wales in the years where the name appears in the published records, from 1996 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Mary-Kate, the clearest high point is 2003. The latest England and Wales figure is 4 births in 2024, compared with 15 at the peak.
Babies born per year
Decades
Mary-Kate by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Mary-Kate was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2020s | #3903 | 25 | 4 |
| 2010s | #3366 | 68 | 10 |
| 2000s | #2213 | 94 | 10 |
| 1990s | #2861 | 19 | 4 |
Geography
Where Mary-Kate is most common
The bars show the latest published local birth counts for Mary-Kate. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.
Mary-Kate ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #354 in 2022.
Across the UK
Mary-Kate in Scotland and Northern Ireland
Northern Ireland (NISRA)
#354 in 2022
16 years of NISRA records, 69 total registered
Related
Names similar to Mary-Kate
- Megan 70,884
- Mia 67,204
- Molly 47,734
- Millie 44,390
- Maisie 32,671
- Matilda 29,965
- Maya 26,445
- Madison 18,441
- Maria 17,304
- Mollie 15,914
- Martha 15,116
- Maddison 14,918
FAQ
Mary-Kate: questions and answers
How popular is the name Mary-Kate in the UK right now?
In 2024, Mary-Kate was ranked #4843 for girls in England and Wales, with 4 births registered.
When was Mary-Kate most popular?
The peak year on record was 2003, with 15 babies registered as Mary-Kate in England and Wales.
How many people are called Mary-Kate in the UK?
A total of 206 babies have been registered as Mary-Kate across the 28 years of ONS England & Wales records shown here and 69 in Northern Ireland.
Where is Mary-Kate most common?
In the latest published local rankings, Mary-Kate ranks best in Northern Ireland, where it placed #354 in 2022. The regional bars on this page use birth counts, so they also reflect the size of each region.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.