Meaning & origin
How it developed
In English usage, Connolly as a surname developed from Ó Conghalaigh.
The story
Published U.S. birth records include this spelling as early as 2008. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Connolly through the years
- Babies since 1880
- 55
- 23 boys · 32 girls
- Most popular year
- 2017
- 12 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- −64%
- Cooling
By the numbers
The most recent published U.S. birth count for girls is 5 in 2022. Later missing counts do not mean the name went unused. Its largest published annual count for girls was 7 in 2017. Published U.S. population figures for this spelling include 147 as a first name in 2020; 28,669 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Connolly’s family of names
In English usage, Connolly as a surname shares an earlier linguistic root with Conley. In English usage, Connolly as a surname has a related form in CONOLLY. In English usage, Connolly as a surname has a related form in Conley.
Inner ring: nicknames and forms · outer: across languages.
Nicknames & forms 2
Diminutives, pet forms, short forms and variants used alongside the name.
Across languages 1
Equivalents and cognates in other languages, plus older forms it grew from.
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