The baby name Thomasine appears in baby name data for the United States from 1927 to 1975. It was most popular in 1950 with 42 babies given the name.
In the later years of this period, Thomasine has become less common than it once was.
| Year | Count |
|---|---|
| 1927 | 6 |
| 1933 | 7 |
| 1934 | 6 |
| 1938 | 10 |
| 1939 | 5 |
| 1941 | 16 |
| 1942 | 27 |
| 1943 | 39 |
| 1944 | 33 |
| 1945 | 15 |
| 1946 | 25 |
| 1947 | 24 |
| 1948 | 25 |
| 1949 | 24 |
| 1950 | 42 |
| 1951 | 18 |
| 1952 | 21 |
| 1953 | 23 |
| 1954 | 23 |
| 1955 | 26 |
| 1956 | 39 |
| 1957 | 13 |
| 1958 | 16 |
| 1959 | 17 |
| 1960 | 14 |
| 1961 | 5 |
| 1962 | 10 |
| 1963 | 12 |
| 1964 | 22 |
| 1965 | 9 |
| 1969 | 10 |
| 1970 | 7 |
| 1973 | 6 |
| 1975 | 5 |