Tonjia is a rare variant of Tonja that was most common in the 1960s and has all but disappeared.
Tonjia is a girl name. It last appears in U.S. records in 1976. Tonjia was first reported in SSA data in 1946 and peaked in 1967 (24 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1976 | 8 | — | #7,248 |
| 1975 | 8 | — | #7,121 |
| 1974 | 11 | — | #5,340 |
| 1973 | 14 | — | #4,349 |
| 1972 | 15 | — | #4,077 |
| 1971 | 17 | — | #3,782 |
| 1970 | 24 | — | #2,931 |
| 1969 | 23 | — | #2,836 |
| 1968 | 21 | — | #2,871 |
| 1967 | 24 | — | #2,552 |
| 1966 | 19 | — | #2,930 |
| 1965 | 20 | — | #2,823 |
| 1964 | 9 | — | #4,980 |
| 1963 | 22 | — | #2,693 |
| 1962 | 14 | — | #3,580 |
| 1961 | 15 | — | #3,457 |
| 1960 | 5 | — | #7,232 |
| 1959 | 5 | — | #7,133 |
| 1958 | 10 | — | #4,174 |
| 1957 | 6 | — | #6,033 |
| 1956 | 5 | — | #6,821 |
| 1951 | 5 | — | #6,152 |
| 1946 | 5 | — | #5,638 |