UK boy's name
Mannix
A masculine name derived from the French surname 'Mannix', meaning "one deserving of happiness".
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.
Mannix is a boy's name in the UK records. People looking for Mannix popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #5119, with 3 babies registered with the name. Its strongest year in the published records was 2018, with 4 births.
This profile covers 19 England and Wales registrations across 6 recorded years from 2008 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 75% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 22 living people in the UK are called Mannix. 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
- • Mannix ranked #5119 for boys in England and Wales in 2024, with 3 registrations.
- • The name peaked in 2018, when 4 boys were registered as Mannix.
- • Mannix ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #404 in 2024.
- • About 22 living people in the UK are estimated to have Mannix as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#5119
2024
Births in 2024
3
Latest year
Peak year
2018
4 births
Estimated living
22
2026
Meaning
What does Mannix mean?
The given name Mannix has its origins in the Celtic cultures of ancient Britain and Ireland. It is derived from the old Celtic word "mannog," which means "little monk" or "little friar." This suggests that the name may have been initially used to refer to young men who were training to become monks or friars in Christian monasteries during the early medieval period.
In its earliest recorded form, the name was spelled "Mannoc" or "Manaug." It is believed to have been in use as a personal name among Celtic-speaking communities in Wales, Cornwall, and Brittany as early as the 6th century AD. Some of the earliest known individuals with this name include Saint Mannoc, a 6th-century Welsh monk and missionary, and Saint Maunoc, a 6th-century Breton abbot and founder of the Abbey of Saint-Méen.
The name Mannix gained wider recognition during the Middle Ages, particularly in Ireland and Scotland. One notable bearer of the name was Mannix O'Brien, a 12th-century Irish king of Thomond. Another was Mannix MacQuillan, a 14th-century Irish chieftain and Lord of Roe in Ulster.
As the name spread across Europe, it was sometimes adapted to local languages and spelling conventions. For example, in Italy, it became "Mannuccio" or "Mannucci," as seen in the case of Mannuccio Salviati (1490-1553), an Italian Renaissance banker and patron of the arts.
In the English-speaking world, the name Mannix gained popularity in the 19th and early 20th centuries. One of the most famous individuals with this name was Daniel Mannix (1864-1963), an Irish-born Catholic Archbishop of Melbourne, Australia, who was a prominent figure in the labor and anti-conscription movements.
Other notable bearers of the name Mannix include:
1. Joseph Mannix (1913-1998), an American actor best known for his role in the television series Mannix. 2. John Mannix (1837-1918), an American politician and lawyer who served as the 14th Lieutenant Governor of Connecticut. 3. William Mannix (1957-present), an American basketball player and coach. 4. Mannix Flynn (1952-present), an Irish artist, writer, and politician who served as a member of the Dublin City Council. 5. Mannix Daniel (1957-present), a Sri Lankan-born Australian actor and comedian.
Sourced from namecensus.com.
Popularity
Mannix over time
The chart below shows babies named Mannix registered in England and Wales in the years where the name appears in the published records, from 2008 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 Mannix, the clearest high point is 2018. The latest England and Wales figure is 3 births in 2024, compared with 4 at the peak.
Babies born per year
Decades
Mannix by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Mannix 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 | #4864 | 6 | 2 |
| 2010s | #4527 | 10 | 3 |
| 2000s | #4432 | 3 | 1 |
Geography
Where Mannix is most common
The bars show the latest published local birth counts for Mannix. 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.
Mannix ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #404 in 2024.
Across the UK
Mannix in Scotland and Northern Ireland
Northern Ireland (NISRA)
#404 in 2024
1 years of NISRA records, 3 total registered
Related
Names similar to Mannix
- Matthew 80,931
- Mohammed 74,321
- Muhammad 72,235
- Max 59,807
- Michael 47,075
- Mason 38,935
- Mohammad 25,910
- Morgan 15,994
- Muhammed 11,527
- Mark 11,336
- Marcus 11,257
- Maxwell 10,006
FAQ
Mannix: questions and answers
How popular is the name Mannix in the UK right now?
In 2024, Mannix was ranked #5119 for boys in England and Wales, with 3 births registered.
When was Mannix most popular?
The peak year on record was 2018, with 4 babies registered as Mannix in England and Wales.
What is the meaning and origin of Mannix?
A masculine name derived from the French surname 'Mannix', meaning "one deserving of happiness".
How many people are called Mannix in the UK?
A total of 19 babies have been registered as Mannix across the 6 years of ONS England & Wales records shown here and 3 in Northern Ireland.
Where is Mannix most common?
In the latest published local rankings, Mannix ranks best in Northern Ireland, where it placed #404 in 2024. 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.