Girls' name · peaked in 1968
Tammy name popularity since 1925
333,407 babies born in the US from 1925 to 2025 were named Tammy. Half of them were born in 1967 or earlier, so the typical Tammy is about 59 years old in 2026. Tammy peaked in 1968 as the #8 name for girls, and it was outside the top 1,000 in 2025.
Key facts
- US babies since 1925
- 333,407
- Named Tammy, 1925–2025
- In 2025
- Not top 1,000
- #3,703 for girls in 2025
- Girls / boys
- 99.6% girls
- 332,015 girls · 1,392 boys
- Most popular in
- West Virginia
- 2.11× its national share
Peak year is the year Tammy made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Tammy births per year, 1925–2025
The biggest year by count was 1963. Measured as a share of all babies, Tammy peaked in 1968.
- Fastest rise: Between 1955 and 1960, Tammy became 73× more common, from 1 in 10,300 baby girls to 1 in 141.
- Steepest fall: Between 1973 and 1978, its share of baby girls fell by 66%, from 1 in 130 to 1 in 376.
Shaded on the chart. Both compare Tammy's share of all US girls five years apart, counting only years with at least 100 babies named Tammy.
Decade by decade
Babies named Tammy in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 0 | 0 | – |
| 1930s | 31 | 6 | #3,136 |
| 1940s | 490 | 0 | #1,183 |
| 1950s | 29,176 | 166 | #681 |
| 1960s | 182,231 | 614 | #11 |
| 1970s | 98,830 | 457 | #31 |
| 1980s | 15,645 | 129 | #217 |
| 1990s | 3,311 | 20 | #752 |
| 2000s | 1,561 | 0 | #1,416 |
| 2010s | 545 | 0 | #3,588 |
| 2020–25 | 195 | 0 | #3,703 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000.
Generation fingerprint
59.1% of babies named Tammy from 1925 to 2025 were born in the Gen X years (1965–1980). The full split by generation:
Where Tammy is most popular
The index compares Tammy's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Tammy.
| State | Index | Babies |
|---|---|---|
| West Virginia | 2.11× | 6,178 |
| Vermont | 1.86× | 1,034 |
| Maine | 1.81× | 2,575 |
| Kentucky | 1.75× | 9,778 |
| Tennessee | 1.69× | 11,861 |
Other spellings
Spellings that sound like Tammy and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.
| Spelling | Girls | Peak year |
|---|---|---|
| Tammy (this page) | 332,015 | 1968 |
| Tami | 37,927 | 1959 |
| Tammie | 35,380 | 1968 |
| Tammi | 13,884 | 1968 |
| Tamie | 3,237 | 1959 |
Names with a similar story
Of the other 499 names on this site, these six had the share of babies closest in shape to Tammy's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Tammy.
Names from the same era
Other common names that peaked within two years of Tammy (1968).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data