Declining since 2015, #2,207 for boys today.
Popularity of Gannon since 1966
Babies named Gannon per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1960s | 25 |
| 1970s | 179 |
| 1980s | 157 |
| 1990s | 641 |
| 2000s | 1,846 |
| 2010s | 3,037 |
| 2020s | 792 |
Meaning & origin
Gannon entered U.S. naming records in 1966 and saw a rise in popularity through the 2000s, peaking at rank 2207 in 2014. Since 2015, its trajectory has been falling, yet it remains in steady use, particularly in Indiana where it saw highest frequency. With an incidence of 1 in 26,689 births in 2025, Gannon is a distinctive choice rooted in Irish surname tradition, likely appealing to families seeking a strong, two-syllable name with a Celtic heritage.
Gannon is likely an anglicized form of the Irish surname Ó Gainbhín or Mac Fhionnain, with roots in the Gaelic word 'fionn' meaning 'fair' or 'white'. The surname was once common in counties Mayo and Sligo. As a given name, it appears to have emerged in the United States in the mid-20th century, possibly influenced by Irish heritage or surnames used as first names.
Where Gannon is most popular
Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Gan, G
Sibling names for Gannon
Names that share Gannon's style, for a brother or sister.
