Duff vs Duffy
Side-by-side comparison of Duff and Duffy — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Duff | Duffy |
|---|---|---|
| Current Rank | Unranked | Unranked |
| Total Births (all years) | 441 | 627 |
| Peak Year | 1954 | 1969 |
| Peak Year Births | 34 | 22 |
| Peak Decade | 1950ss | 1950ss |
| Gender | Boy | Boy |
| First Recorded Year | 1880 | 1915 |
Births by Decade
| Decade | Duff | Duffy |
|---|---|---|
| 1880ss | 10 | — |
| 1910ss | 13 | 24 |
| 1920ss | 27 | 54 |
| 1930ss | 13 | 23 |
| 1940ss | 42 | 68 |
| 1950ss | 177 | 136 |
| 1960ss | 117 | 122 |
| 1970ss | 36 | 133 |
| 1980ss | — | 32 |
| 1990ss | — | 30 |
| 2000ss | 6 | — |
| 2010ss | — | 5 |
Data Sources
Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1880–2008.