Alistair Oreilly

Name meaning, origin and global statistics

Alistair Oreilly — defender of men
280K People worldwide
United Kingdom Most common in
1975s Peak popularity
Gender
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Alistair Oreilly is a name that combines Greek origins. The first name Alistair is a masculine given name of Greek origin. Scottish Gaelic form of Alexander (Greek Alexandros: defender of men). Common throughout the Scottish Highlands. The surname Oreilly: O'Reilly (Irish: Ó Raghallaigh) is a common Irish surname. The O'Reillys were historically the kings of East Bréifne in what is today County Cavan. The clan were part of the Connachta's Uí Briúin Bréifne kindred and were closely related to the Ó Ruairc (O'Rourkes) of West Bréifne. O'Reilly is ranked tenth in the top twenty list of most common Irish surnames. It is also the patronymic form of the Irish name Reilly (Irish: Raghallach). Usually anglicised as Reilly, O'Reilly or Riley, the original form of the name, Ó Raghallaigh, denotes "descendant of Raghallach". Alistair is a well-known first name, carried by approximately 280K people globally, with the highest concentration in United Kingdom. The name Alistair reached peak popularity in the 1975s, reflecting the naming trends of that era.

Etymology & Origin

First Name: Alistair

Meaning: defender of men

Greek

Scottish Gaelic form of Alexander (Greek Alexandros: defender of men). Common throughout the Scottish Highlands.

Surname: Oreilly

Irish

O'Reilly (Irish: Ó Raghallaigh) is a common Irish surname. The O'Reillys were historically the kings of East Bréifne in what is today County Cavan. The clan were part of the Connachta's Uí Briúin Bréifne kindred and were closely related to the Ó Ruairc (O'Rourkes) of West Bréifne. O'Reilly is ranked tenth in the top twenty list of most common Irish surnames. It is also the patronymic form of the Irish name Reilly (Irish: Raghallach). Usually anglicised as Reilly, O'Reilly or Riley, the original form of the name, Ó Raghallaigh, denotes "descendant of Raghallach".

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Geographic Distribution

The first name Alistair is distributed across the globe, with the highest concentrations in the following countries:

United Kingdom 83%
Australia 11%
Canada 6%

Popularity Over Time

Popularity of the name Alistair by decade, based on birth registration data:

1900s
1910s
1920s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s
2020s
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Name Variants & Related Names

The name Alistair has several variants and related forms across different languages and cultures:

  • Alastair
  • Alasdair
  • Alexander
  • Alex

Numerology

According to Pythagorean numerology, each letter in a name carries a numerical value. Here are the key numbers for Alistair Oreilly:

5
Expression Number

Freedom and adaptability. A dynamic, versatile personality that embraces change and seeks new experiences.

4
Soul Urge Number

Stability and hard work. Represents practicality, reliability and dedication — someone who builds solid foundations.

1
Personality Number

Leadership and independence. This number suggests a self-reliant, ambitious and pioneering personality that forges its own path.

Numerology is a cultural tradition for exploring symbolism in names. Results are for entertainment purposes.

Frequently Asked Questions

What is the origin of the first name Alistair?
The first name Alistair originates from Greek. Scottish Gaelic form of Alexander (Greek Alexandros: defender of men). Common throughout the Scottish Highlands.
When was Alistair most popular?
The name Alistair reached its peak popularity during the 1975s.
What is the origin of the surname Oreilly?
The surname Oreilly originates from Irish. O'Reilly (Irish: Ó Raghallaigh) is a common Irish surname. The O'Reillys were historically the kings of East Bréifne in what is today County Cavan. The clan were part of the Connachta's Uí Briúin Bréifne kindred and were closely related to the Ó Ruairc (O'Rourkes) of West Bréifne. O'Reilly is ranked tenth in the top twenty list of most common Irish surnames. It is also the patronymic form of the Irish name Reilly (Irish: Raghallach). Usually anglicised as Reilly, O'Reilly or Riley, the original form of the name, Ó Raghallaigh, denotes "descendant of Raghallach".
What are the origins of the name Alistair Oreilly?
The name Alistair Oreilly combines two different traditions: the first name Alistair has Greek roots, while the surname Oreilly originates from Irish.
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