Popularity in the United States (by decade)
Numbers
| Brittany (feminine) | Brittany (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #904 | 0.017 | - | - | ||
| 2010 | #521 | 0.031 | - | - | ||
| 2000 | #189 | 0.086 | - | - | ||
| 1990 | #7 | 0.971 | - | - | ||
| 1980 | #21 | 0.763 | #1191 | 0.003 | ||
| 1970 | #529 | 0.021 | - | - | ||
| 1960 | - | - | - | - | ||
| 1950 | - | - | - | - | ||
| 1940 | - | - | - | - | ||
| 1930 | - | - | - | - | ||
| 1920 | - | - | - | - | ||
| 1910 | - | - | - | - | ||
| 1900 | - | - | - | - | ||
| 1890 | - | - | - | - | ||
| 1880 | - | - | - | - | ||
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