Thomasine
Thomasine was last recorded in 1994, when 6 babies were given it; 2,234 Americans have been recorded with it between 1909 and 1994 (Social Security Administration, published May 2026).
An estimated 1,240 Americans named Thomasine and born in the U.S. are alive in 2026 (56% of everyone recorded); the median is 70 years old and half are between 61 and 78.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Thomasine by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Thomasine mean?
Wiktionary, English section
Thomasine is “a female given name from Aramaic, a feminine form of Thomas.”
From Thomas + -ine.
/ˈtɑm.əs.in/
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Thomasine?
Unranked in 2025
Its last girls’ rank on record is #13,300, in 1994; SSA lists a name only in years with 5 or more births.
67 babies in 1950, the peak
Thomasine peaked in 1950, when 67 girls were given it, #1,131 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1994 | 6 | #13,300 | 3.4 |
| 1990 | 5 | #15,083 | 2.6 |
| 1987 | 7 | #9,742 | 4.0 |
| 1986 | 6 | #10,801 | 3.5 |
| 1985 | 5 | #12,348 | 2.9 |
| 1984 | 6 | #10,311 | 3.6 |
| 1983 | 7 | #8,949 | 4.2 |
| 1982 | 8 | #8,162 | 4.7 |
| 1981 | 9 | #7,369 | 5.4 |
| 1980 | 7 | #9,021 | 4.2 |
Every recorded year (79)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1979 | 6 | #10,117 | 3.7 |
| 1978 | 18 | #4,070 | 11.8 |
| 1977 | 10 | #6,308 | 6.5 |
| 1976 | 19 | #3,662 | 13.0 |
| 1975 | 20 | #3,501 | 13.7 |
| 1974 | 20 | #3,419 | 13.6 |
| 1973 | 16 | #3,948 | 11.0 |
| 1972 | 15 | #4,074 | 9.9 |
| 1971 | 25 | #2,864 | 15.0 |
| 1970 | 31 | #2,443 | 17.7 |
| 1969 | 24 | #2,766 | 14.2 |
| 1968 | 16 | #3,440 | 9.8 |
| 1967 | 23 | #2,624 | 13.9 |
| 1966 | 19 | #2,927 | 11.2 |
| 1965 | 36 | #1,949 | 20.4 |
| 1964 | 38 | #1,945 | 20.1 |
| 1963 | 39 | #1,890 | 20.2 |
| 1962 | 30 | #2,206 | 15.3 |
| 1961 | 33 | #2,067 | 16.3 |
| 1960 | 38 | #1,852 | 18.8 |
| 1959 | 39 | #1,789 | 19.3 |
| 1958 | 42 | #1,676 | 20.9 |
| 1957 | 39 | #1,746 | 19.1 |
| 1956 | 60 | #1,348 | 29.9 |
| 1955 | 45 | #1,535 | 23.0 |
| 1954 | 46 | #1,501 | 23.7 |
| 1953 | 56 | #1,307 | 29.8 |
| 1952 | 56 | #1,282 | 30.2 |
| 1951 | 50 | #1,329 | 27.8 |
| 1950 | 67 | #1,131 | 39.1 |
| 1949 | 53 | #1,262 | 31.0 |
| 1948 | 55 | #1,236 | 32.4 |
| 1947 | 45 | #1,395 | 25.4 |
| 1946 | 51 | #1,217 | 32.5 |
| 1945 | 50 | #1,120 | 38.3 |
| 1944 | 56 | #1,051 | 42.2 |
| 1943 | 53 | #1,111 | 38.0 |
| 1942 | 51 | #1,112 | 37.8 |
| 1941 | 54 | #1,004 | 44.7 |
| 1940 | 37 | #1,216 | 32.4 |
| 1939 | 36 | #1,239 | 32.8 |
| 1938 | 34 | #1,264 | 30.8 |
| 1937 | 29 | #1,383 | 27.3 |
| 1936 | 30 | #1,343 | 28.8 |
| 1935 | 34 | #1,240 | 32.4 |
| 1934 | 32 | #1,289 | 30.6 |
| 1933 | 34 | #1,242 | 33.7 |
| 1932 | 38 | #1,175 | 35.6 |
| 1931 | 30 | #1,373 | 28.2 |
| 1930 | 32 | #1,366 | 28.4 |
| 1929 | 27 | #1,521 | 24.2 |
| 1928 | 31 | #1,420 | 26.9 |
| 1927 | 34 | #1,400 | 28.5 |
| 1926 | 28 | #1,586 | 23.6 |
| 1925 | 25 | #1,744 | 20.5 |
| 1924 | 29 | #1,604 | 23.2 |
| 1923 | 23 | #1,832 | 19.1 |
| 1922 | 23 | #1,833 | 19.2 |
| 1921 | 19 | #2,109 | 15.4 |
| 1920 | 25 | #1,703 | 20.9 |
| 1919 | 10 | #3,198 | 8.8 |
| 1918 | 14 | #2,504 | 12.1 |
| 1917 | 12 | #2,679 | 11.1 |
| 1916 | 12 | #2,640 | 11.5 |
| 1915 | 7 | #3,760 | 7.1 |
| 1914 | 21 | #1,438 | 27.6 |
| 1913 | 8 | #2,516 | 12.8 |
| 1910 | 5 | #2,753 | 12.6 |
| 1909 | 5 | #2,522 | 14.4 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Thomasine a boy’s or a girl’s name?
Thomasine has been recorded only for girls: SSA lists no boys with the name in 79 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Thomasine: the SSA national file counts each sex separately.
How many people are named Thomasine, and how old are they?
1,240 alive in 2026, estimated
That is 56% of the 2,234 Americans ever recorded as Thomasine. The median Thomasine alive today is 70 years old; half are between 61 and 78.
The 2020 Census counted 1,238 people named Thomasine (1,233 women and girls, 5 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,452 born in the U.S. The Census count is 15% below that prediction. Possible reasons: people who give a short form or another name to the Census, and a survival estimate that can run high.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 228 |
| Baby Boomers | 1946-1964 | 674 |
| Generation X | 1965-1980 | 281 |
| Millennials | 1981-1996 | 57 |
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).
Where are babies named Thomasine born?
The states with the most babies named Thomasine are Virginia, District of Columbia and Pennsylvania, with 65% of its births recorded by state since 1910; Virginia and District of Columbia are not among the ten states with the most births.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| Virginia | 143 | not ranked | 2.7× |
| District of Columbia | 107 | not ranked | 7.2× |
| Pennsylvania | 79 | not ranked | 0.5× |
| North Carolina | 69 | not ranked | 1.0× |
| New York | 38 | not ranked | 0.2× |
| Maryland | 26 | not ranked | 0.8× |
| South Carolina | 18 | not ranked | 0.4× |
| Illinois | 12 | not ranked | 0.1× |
| Alabama | 10 | not ranked | 0.2× |
| Massachusetts | 5 | not ranked | 0.1× |
Where Thomasine is more common than its national share predicts
Relative to its national share, Thomasine is most over-represented in District of Columbia: since 1910 it was given 7.2 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Thomasine with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 5 names spelled alike, given to 7,038 babies since 1880, Thomasine is the second most given (32% of them).
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 Thomasine
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 Thomasine and names like it
- Compare Thomasine and ThomasinaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1950sThomasine peaked in 1950.
- Virginia’s most given namesThe state where SSA recorded the most babies named Thomasine since 1910.
- The top names of 1950The year the most babies were named Thomasine.
- The names of the Baby BoomersMost people named Thomasine alive today were born 1946-1964.
- Names starting with TMost given first.