When was Oisin most popular?

The name Oisin reached its peak popularity during the 2005s.

What are the origins of the name Oisin Oreilly?

The name Oisin Oreilly combines two different traditions: the first name Oisin has Celtic roots, while the surname Oreilly originates from Irish.

Oisin Oreilly — 150K & 12K bearers

Oisin Oreilly is a name that combines Celtic origins. The first name Oisin is a masculine given name of Celtic origin. From Irish Gaelic Oisín, meaning 'little deer' (os=deer). In Irish mythology, Oisín was the son of the warrior Fionn mac Cumhaill and a poet. 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". Oisin is a distinctive first name, carried by approximately 150K people globally, with the highest concentration in Ireland. The name Oisin reached peak popularity in the 2005s, reflecting the naming trends of that era.

Etymology & Origin

First Name: Oisin

Meaning: little deer

Celtic

From Irish Gaelic Oisín, meaning 'little deer' (os=deer). In Irish mythology, Oisín was the son of the warrior Fionn mac Cumhaill and a poet.

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".

Geographic Distribution

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

Ireland 81%

United Kingdom 19%

Popularity Over Time

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

1900s

1910s

1920s

1930s

1940s

1950s

1960s

1970s

1980s

1990s

2000s

2010s

2020s

Name Variants & Related Names

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

Oscar
Ossian
Oisín

Notable People Named Oisin Oreilly

People listed above share this name. Listed for informational purposes only. Source: Wikipedia.

Numerology

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

9

Expression Number

Compassion and humanitarianism. A generous, idealistic nature with a sincere desire to improve the world.

8

Soul Urge Number

Ambition and material success. Represents power, business acumen and the drive to achieve significant goals.

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 Oisin?: The first name Oisin originates from Celtic. From Irish Gaelic Oisín, meaning 'little deer' (os=deer). In Irish mythology, Oisín was the son of the warrior Fionn mac Cumhaill and a poet.
When was Oisin most popular?: The name Oisin reached its peak popularity during the 2005s.
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 Oisin Oreilly?: The name Oisin Oreilly combines two different traditions: the first name Oisin has Celtic roots, while the surname Oreilly originates from Irish.