Theresia
Theresia was last recorded in 2007, when 7 babies were given it; 2,016 Americans have been recorded with it between 1881 and 2007 (Social Security Administration, published May 2026).
An estimated 1,000 Americans named Theresia and born in the U.S. are alive in 2026 (50% of everyone recorded); the median is 65 years old and half are between 56 and 72.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Theresia by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Theresia mean?
Wiktionary, German section
Theresia is “a female given name, variant of Theresa, equivalent to English Teresa”
/teˈʁeː.zi̯a/
Meaning: Wiktionary, German section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Theresia?
Unranked in 2025
Its last girls’ rank on record is #15,345, in 2007; SSA lists a name only in years with 5 or more births.
58 babies in 1959, the peak
Theresia peaked in 1959, when 58 girls were given it, #1,415 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2007 | 7 | #15,345 | under 0.01 |
| 2002 | 6 | #15,249 | under 0.01 |
| 2000 | 7 | #13,034 | under 0.01 |
| 1998 | 6 | #13,966 | under 0.01 |
| 1993 | 6 | #13,302 | under 0.01 |
| 1992 | 10 | #8,691 | 0.01 |
| 1991 | 6 | #13,002 | under 0.01 |
| 1989 | 7 | #10,751 | under 0.01 |
| 1988 | 11 | #7,073 | 0.01 |
| 1987 | 5 | #13,101 | under 0.01 |
Every recorded year (115)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 1986 | 8 | #8,461 | under 0.01 |
| 1985 | 7 | #9,220 | under 0.01 |
| 1984 | 8 | #8,094 | under 0.01 |
| 1983 | 17 | #4,465 | 0.01 |
| 1982 | 10 | #6,848 | 0.01 |
| 1981 | 9 | #7,366 | 0.01 |
| 1980 | 18 | #4,309 | 0.01 |
| 1979 | 10 | #6,657 | 0.01 |
| 1978 | 11 | #5,939 | 0.01 |
| 1977 | 6 | #9,547 | under 0.01 |
| 1976 | 11 | #5,575 | 0.01 |
| 1975 | 12 | #5,140 | 0.01 |
| 1974 | 18 | #3,683 | 0.01 |
| 1973 | 14 | #4,340 | 0.01 |
| 1972 | 10 | #5,443 | 0.01 |
| 1971 | 19 | #3,493 | 0.01 |
| 1970 | 22 | #3,102 | 0.01 |
| 1969 | 28 | #2,512 | 0.02 |
| 1968 | 25 | #2,533 | 0.02 |
| 1967 | 24 | #2,551 | 0.01 |
| 1966 | 26 | #2,402 | 0.02 |
| 1965 | 26 | #2,403 | 0.01 |
| 1964 | 45 | #1,745 | 0.02 |
| 1963 | 35 | #2,013 | 0.02 |
| 1962 | 43 | #1,755 | 0.02 |
| 1961 | 45 | #1,715 | 0.02 |
| 1960 | 36 | #1,919 | 0.02 |
| 1959 | 58 | #1,415 | 0.03 |
| 1958 | 41 | #1,701 | 0.02 |
| 1957 | 34 | #1,896 | 0.02 |
| 1956 | 40 | #1,690 | 0.02 |
| 1955 | 34 | #1,833 | 0.02 |
| 1954 | 42 | #1,577 | 0.02 |
| 1953 | 35 | #1,698 | 0.02 |
| 1952 | 31 | #1,818 | 0.02 |
| 1951 | 33 | #1,696 | 0.02 |
| 1950 | 27 | #1,867 | 0.02 |
| 1949 | 36 | #1,560 | 0.02 |
| 1948 | 36 | #1,571 | 0.02 |
| 1947 | 27 | #1,894 | 0.02 |
| 1946 | 17 | #2,385 | 0.01 |
| 1945 | 13 | #2,584 | 0.01 |
| 1944 | 8 | #3,655 | 0.01 |
| 1943 | 13 | #2,679 | 0.01 |
| 1942 | 18 | #2,110 | 0.01 |
| 1941 | 18 | #2,015 | 0.01 |
| 1940 | 10 | #2,936 | 0.01 |
| 1939 | 12 | #2,568 | 0.01 |
| 1938 | 8 | #3,427 | 0.01 |
| 1937 | 7 | #3,764 | 0.01 |
| 1936 | 8 | #3,345 | 0.01 |
| 1935 | 18 | #1,910 | 0.02 |
| 1934 | 14 | #2,276 | 0.01 |
| 1933 | 14 | #2,262 | 0.01 |
| 1932 | 18 | #1,943 | 0.02 |
| 1931 | 14 | #2,298 | 0.01 |
| 1930 | 14 | #2,411 | 0.01 |
| 1929 | 14 | #2,417 | 0.01 |
| 1928 | 20 | #1,956 | 0.02 |
| 1927 | 21 | #1,929 | 0.02 |
| 1926 | 21 | #1,925 | 0.02 |
| 1925 | 10 | #3,339 | 0.01 |
| 1924 | 22 | #1,918 | 0.02 |
| 1923 | 18 | #2,159 | 0.01 |
| 1922 | 15 | #2,469 | 0.01 |
| 1921 | 12 | #2,920 | 0.01 |
| 1920 | 20 | #2,009 | 0.02 |
| 1919 | 16 | #2,251 | 0.01 |
| 1918 | 23 | #1,748 | 0.02 |
| 1917 | 14 | #2,415 | 0.01 |
| 1916 | 32 | #1,295 | 0.03 |
| 1915 | 27 | #1,401 | 0.03 |
| 1914 | 11 | #2,246 | 0.01 |
| 1913 | 16 | #1,519 | 0.03 |
| 1912 | 15 | #1,467 | 0.03 |
| 1911 | 11 | #1,536 | 0.03 |
| 1910 | 9 | #1,758 | 0.02 |
| 1908 | 14 | #1,129 | 0.04 |
| 1907 | 9 | #1,500 | 0.03 |
| 1906 | 8 | #1,546 | 0.03 |
| 1905 | 7 | #1,679 | 0.02 |
| 1904 | 20 | #834 | 0.07 |
| 1903 | 13 | #1,022 | 0.05 |
| 1902 | 12 | #1,070 | 0.05 |
| 1901 | 14 | #912 | 0.06 |
| 1900 | 9 | #1,416 | 0.03 |
| 1899 | 16 | #832 | 0.07 |
| 1898 | 18 | #815 | 0.07 |
| 1897 | 13 | #928 | 0.06 |
| 1896 | 17 | #811 | 0.07 |
| 1895 | 12 | #977 | 0.05 |
| 1894 | 17 | #740 | 0.08 |
| 1893 | 13 | #862 | 0.06 |
| 1892 | 13 | #857 | 0.06 |
| 1891 | 17 | #665 | 0.09 |
| 1890 | 9 | #1,000 | 0.05 |
| 1889 | 18 | #618 | 0.10 |
| 1888 | 22 | #546 | 0.12 |
| 1887 | 11 | #727 | 0.08 |
| 1886 | 6 | #1,096 | 0.04 |
| 1885 | 10 | #741 | 0.08 |
| 1884 | 12 | #639 | 0.09 |
| 1883 | 6 | #916 | 0.05 |
| 1882 | 13 | #527 | 0.12 |
| 1881 | 8 | #671 | 0.09 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Theresia a boy’s or a girl’s name?
Theresia has been recorded only for girls: SSA lists no boys with the name in 115 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Theresia: the SSA national file counts each sex separately.
How many people are named Theresia, and how old are they?
1,000 alive in 2026, estimated
That is 50% of the 2,016 Americans ever recorded as Theresia. The median Theresia alive today is 65 years old; half are between 56 and 72.
The 2020 Census counted 2,000 people named Theresia (1,997 women and girls, 3 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,107 born in the U.S. The Census count is 1.8 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.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 67 |
| Baby Boomers | 1946-1964 | 547 |
| Generation X | 1965-1980 | 258 |
| Millennials | 1981-1996 | 101 |
| Generation Z | 1997-2012 | 26 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
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 450,348 babies since 1880, Theresia is the fifth most given (<1% of them). In 2025 none of their 215 babies recorded by SSA was a Theresia (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 Theresia
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 Theresia and names like it
- Compare Theresia and TheresaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1950sTheresia peaked in 1959.
- Texas’s most given namesThe state where SSA recorded the most babies named Theresia since 1910.
- German namesWiktionary’s origin for Theresia: every such name, by how often it is given.
- The top names of 1959The year the most babies were named Theresia.
- The names of the Baby BoomersMost people named Theresia alive today were born 1946-1964.
- Names starting with TMost given first.