Thersa
Thersa was last recorded in 2001, when 6 babies were given it; 1,071 Americans have been recorded with it between 1908 and 2001 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Thersa by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Thersa?
Unranked in 2025
Its last girls’ rank on record is #15,189, in 2001; SSA lists a name only in years with 5 or more births.
45 babies in 1965, the peak
Thersa peaked in 1965, when 45 girls were given it, #1,688 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2001 | 6 | #15,189 | 3.3 |
| 1990 | 7 | #11,302 | 3.7 |
| 1987 | 5 | #13,103 | 2.9 |
| 1986 | 6 | #10,798 | 3.5 |
| 1985 | 7 | #9,221 | 4.1 |
| 1984 | 5 | #12,041 | 3.0 |
| 1983 | 16 | #4,674 | 9.6 |
| 1982 | 8 | #8,161 | 4.7 |
| 1981 | 9 | #7,368 | 5.4 |
| 1980 | 16 | #4,723 | 9.6 |
Every recorded year (67)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1979 | 12 | #5,729 | 7.5 |
| 1978 | 10 | #6,352 | 6.5 |
| 1977 | 21 | #3,601 | 13.7 |
| 1976 | 19 | #3,661 | 13.0 |
| 1975 | 25 | #2,958 | 17.1 |
| 1974 | 23 | #3,098 | 15.7 |
| 1973 | 28 | #2,627 | 19.2 |
| 1972 | 28 | #2,589 | 18.4 |
| 1971 | 20 | #3,361 | 12.0 |
| 1970 | 30 | #2,515 | 17.2 |
| 1969 | 23 | #2,834 | 13.6 |
| 1968 | 30 | #2,242 | 18.3 |
| 1967 | 30 | #2,208 | 18.2 |
| 1966 | 26 | #2,403 | 15.4 |
| 1965 | 45 | #1,688 | 25.5 |
| 1964 | 40 | #1,887 | 21.1 |
| 1963 | 34 | #2,056 | 17.6 |
| 1962 | 29 | #2,257 | 14.7 |
| 1961 | 32 | #2,111 | 15.9 |
| 1960 | 37 | #1,882 | 18.3 |
| 1959 | 28 | #2,186 | 13.8 |
| 1958 | 19 | #2,744 | 9.4 |
| 1957 | 17 | #2,918 | 8.3 |
| 1956 | 29 | #2,050 | 14.4 |
| 1955 | 14 | #3,209 | 7.2 |
| 1954 | 22 | #2,374 | 11.3 |
| 1953 | 10 | #3,932 | 5.3 |
| 1952 | 14 | #3,027 | 7.5 |
| 1951 | 15 | #2,798 | 8.3 |
| 1950 | 18 | #2,426 | 10.5 |
| 1949 | 13 | #2,983 | 7.6 |
| 1948 | 9 | #3,853 | 5.3 |
| 1944 | 6 | #4,524 | 4.5 |
| 1940 | 5 | #4,968 | 4.4 |
| 1935 | 7 | #3,716 | 6.7 |
| 1934 | 9 | #3,132 | 8.6 |
| 1933 | 14 | #2,263 | 13.9 |
| 1931 | 8 | #3,460 | 7.5 |
| 1930 | 11 | #2,824 | 9.8 |
| 1929 | 11 | #2,903 | 9.9 |
| 1928 | 10 | #3,140 | 8.7 |
| 1927 | 10 | #3,261 | 8.4 |
| 1926 | 15 | #2,457 | 12.7 |
| 1925 | 11 | #3,100 | 9.0 |
| 1924 | 9 | #3,631 | 7.2 |
| 1923 | 12 | #2,897 | 9.9 |
| 1922 | 5 | #5,705 | 4.2 |
| 1921 | 11 | #3,134 | 8.9 |
| 1920 | 13 | #2,717 | 10.8 |
| 1919 | 6 | #4,754 | 5.3 |
| 1918 | 10 | #3,217 | 8.6 |
| 1917 | 12 | #2,678 | 11.1 |
| 1916 | 12 | #2,639 | 11.5 |
| 1914 | 8 | #2,846 | 10.5 |
| 1911 | 7 | #2,171 | 16.7 |
| 1910 | 8 | #1,915 | 20.2 |
| 1908 | 6 | #2,077 | 17.9 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Thersa a boy’s or a girl’s name?
Thersa has been recorded only for girls: SSA lists no boys with the name in 67 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Thersa: the SSA national file counts each sex separately.
How many people are named Thersa, and how old are they?
An estimated 747 Americans named Thersa and born in the U.S. are alive in 2026 (70% of everyone recorded); the median is 60 years old and half are between 53 and 66. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 1,374 people named Thersa (1,371 women and girls, 3 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 799 born in the U.S. The Census count is 1.7 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 8 names spelled alike, given to 450,655 babies since 1880, Thersa is the sixth most given (<1% of them). In 2025 none of their 215 babies recorded by SSA was a Thersa (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Thersa
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Thersa and names like it
- Compare Thersa and TheresaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1960sThersa peaked in 1965.
- California’s most given namesThe state where SSA recorded the most babies named Thersa since 1910.
- The top names of 1965The year the most babies were named Thersa.
- The names of Generation XMost people named Thersa alive today were born 1965-1980.
- Names starting with TMost given first.