Holding steady.
Popularity of Glennon since 1912
Babies named Glennon per year in U.S. Social Security records. Raw births topped out in 1957, but relative to how few babies were recorded back then, Glennon's real moment was 1928.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 100 |
| 1920s | 243 |
| 1930s | 185 |
| 1940s | 211 |
| 1950s | 220 |
| 1960s | 162 |
| 1970s | 56 |
| 1980s | 49 |
| 1990s | 18 |
| 2000s | 0 |
| 2010s | 0 |
| 2020s | 0 |
Meaning & origin
Glennon is a name that has seen only modest use, with its peak occurring in 1928 when it recorded 8 births per million. It has remained stable in usage but never entered the top 1000. With Irish origins rooted in the word for 'valley', it carries a simple, nature-inspired feel. The name has not seen a revival and remains a rare choice, often associated with familial or regional ties to Ireland.
Glennon is an Irish name thought to be a variant of Glenn, which itself derives from the Gaelic word 'gleann' meaning 'valley'. It may also be a surname turned given name, with connections to County Roscommon. The name saw modest use in the early 20th century, particularly in the United States, but has remained relatively uncommon.
Nicknames & variants
Nicknames: Glen, Glenn
Variants: Glenon, Glennan
Sibling names for Glennon
Names that share Glennon's style, for a brother or sister.

