The baby name Diamantina appears in baby name data for the United States from 1916 to 1985. It was most popular in 1935 with 30 babies given the name.
Over the period shown, Diamantina has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1916 | 14 |
| 1917 | 12 |
| 1920 | 5 |
| 1921 | 5 |
| 1922 | 5 |
| 1923 | 6 |
| 1924 | 5 |
| 1925 | 6 |
| 1926 | 6 |
| 1927 | 20 |
| 1928 | 20 |
| 1929 | 14 |
| 1930 | 20 |
| 1931 | 26 |
| 1932 | 18 |
| 1933 | 20 |
| 1934 | 9 |
| 1935 | 30 |
| 1936 | 11 |
| 1937 | 6 |
| 1938 | 5 |
| 1939 | 11 |
| 1940 | 7 |
| 1941 | 11 |
| 1950 | 8 |
| 1951 | 11 |
| 1952 | 10 |
| 1953 | 15 |
| 1954 | 10 |
| 1955 | 9 |
| 1956 | 12 |
| 1957 | 11 |
| 1958 | 7 |
| 1959 | 8 |
| 1960 | 14 |
| 1961 | 8 |
| 1967 | 5 |
| 1968 | 8 |
| 1969 | 6 |
| 1970 | 6 |
| 1971 | 9 |
| 1977 | 5 |
| 1979 | 9 |
| 1982 | 5 |
| 1983 | 6 |
| 1984 | 10 |
| 1985 | 10 |