Oneil

“A beloved name with deep roots”

Ireland origin · Unisex name

♂ 99% boys♀ 1% girls

#1144US 2023

1.1kBirths / yr

→Stable

1.7kAll-time births

📅 Since 191500

What does Oneil mean and where does it come from?

Oneil is an anglicized form of the Irish name Ó Néill, which means 'descendant of Niall.' Niall is an ancient Irish name meaning 'champion' or 'cloud.' The name Oneil is less common as a female name and may be seen as a modern variation or adaptation. In Irish history, the Ó Néill family was a promi

Cultural significance

Oneil has been a cherished name across cultures, particularly in Ireland-speaking communities, where it reflects values of a beloved name with deep roots.

Peak popularity

Reached #3959 in 1918 — currently #1144 in the US.

🌿

What middle names flow best with Oneil?

Oneil works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Oneil Grace

How popular is Oneil right now?

Holding steady — currently #1144 in the US out of 135.5k tracked names

US Trend 1915–2023#1144 · Top 0.84%

1915

2021

2022

2023

Year	US Rank	Births	vs Prior Year
2023	#1144	1,056	▲ up 5 · +2% births
2022	#1149	1,036	▲ up 5 · +3% births
2021	#1154	1,006	▲ up 3222 · +20020% births
1915	#4376	5	—

Name Popularity Timeline

Popularity Statistics for Oneil

Best Year2023Rank #1144

Peak Count1,056

Average Rank#1956

Current Trend→Stable

Data Range1915 - 20234 years

The story of Oneil

Oneil entered American naming records in 1915 and has been in use for over 109 years. With 1,736 total births recorded, Oneil remains relatively uncommon. The name has grown more popular over time, rising from #4376 in 1915 to #1144 in 2023. Oneil is used for both genders: 1% female and 99% male.

Names that peaked alongside Oneil in 1918:

Mary Helen Dorothy Margaret Ruth

Oneil by decade

Oneil peaked in the 1910s. See all 1910s names →

Decade	Births
1890s	5
1910s	127
1920s ★	269
1930s	185
1940s	171
1950s	142
1960s	85
1970s	83
1980s	149
1990s	198
2000s	189
2010s	125
2020s	8

💎With 1,736 total births, Oneil is an uncommon but established name.

What are good nicknames for Oneil?

Common

OneOnOnieOny

What names sound and feel like Oneil?

Based on sound, origin, and style — parents who love Oneil also consider these

Oneill

Ireland · Noble, esteemed

English · Light, illumination

Oneal

American · noble, champion

Ireland · from the seat

Common questions about the name Oneil

What does the name Oneil mean?

Oneil means "A beloved name with deep roots" — a name rooted in Ireland tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.

How popular is the name Oneil?

Oneil is currently a distinctive and less common name as a baby name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.

What is the cultural origin of Oneil?

Oneil originates from Ireland tradition. Ireland names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.

Is Oneil a common or rare name?

Oneil is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.

Is Oneil more of a girl or boy name?

Oneil is a genuinely unisex name used for both boys and girls. The unisex quality makes it particularly versatile for modern families.