Dennis is a boy name with a classic feel, drawn from real birth records.
| Country | Births on record |
|---|---|
| United States since 1880 | 623,692 births |
| England & Wales since 1996 | 2,599 births |
| Ireland since 1964 | 426 births |
Counts come from national birth registrations: the U.S. Social Security Administration, England & Wales (ONS) and Ireland (CSO). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Dennis per year — United States (1880–2025). United States peaked in 1952 (24,605/yr) · England & Wales peaked in 2017 (139/yr) · Ireland peaked in 2002 (16/yr).
Dennis reached its peak in 1952, when it was the #29 most popular baby name in the United States — making it a quintessential 1950s name.
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