Tanja is an uncommon girls' name that was most common in the 1970s and has all but disappeared.
Tanja is a girl name. It last appears in U.S. records in 2007. Tanja first appears in 1943 and peaked in 1970 (153 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2007 | 7 | 7 | #15,319 |
| 2006 | 5 | 5 | #19,774 |
| 2004 | 5 | 5 | #18,543 |
| 2002 | 6 | 6 | #15,216 |
| 2001 | 7 | 7 | #13,360 |
| 1999 | 5 | 5 | #16,655 |
| 1998 | 10 | 10 | #9,206 |
| 1997 | 9 | — | #9,729 |
| 1996 | 7 | — | #11,682 |
| 1995 | 11 | — | #8,024 |
| 1994 | 14 | — | #6,624 |
| 1993 | 12 | — | #7,448 |
| 1992 | 22 | — | #4,670 |
| 1991 | 11 | — | #7,934 |
| 1990 | 25 | — | #4,106 |
| 1989 | 21 | — | #4,507 |
| 1988 | 26 | — | #3,679 |
| 1987 | 23 | — | #3,851 |
| 1986 | 33 | — | #2,900 |
| 1985 | 31 | — | #2,998 |
| 1984 | 35 | — | #2,673 |
| 1983 | 45 | — | #2,192 |
| 1982 | 31 | — | #2,948 |
| 1981 | 37 | — | #2,558 |
| 1980 | 47 | — | #2,183 |
| 1979 | 59 | — | #1,828 |
| 1978 | 69 | — | #1,579 |
| 1977 | 48 | — | #2,022 |
| 1976 | 69 | — | #1,512 |
| 1975 | 71 | — | #1,457 |
| 1974 | 104 | — | #1,122 |
| 1973 | 91 | — | #1,193 |
| 1972 | 134 | — | #922 |
| 1971 | 126 | — | #999 |
| 1970 | 153 | — | #875 |
| 1969 | 126 | — | #954 |
| 1968 | 110 | — | #1,001 |
| 1967 | 110 | — | #977 |
| 1966 | 101 | — | #1,039 |
| 1965 | 88 | — | #1,134 |
| 1964 | 104 | — | #1,071 |
| 1963 | 92 | — | #1,146 |
| 1962 | 67 | — | #1,358 |
| 1961 | 82 | — | #1,223 |
| 1960 | 71 | — | #1,311 |
| 1959 | 40 | — | #1,762 |
| 1958 | 41 | — | #1,701 |
| 1957 | 34 | — | #1,895 |
| 1956 | 23 | — | #2,378 |
| 1955 | 18 | — | #2,716 |
| 1954 | 12 | — | #3,475 |
| 1953 | 14 | — | #3,091 |
| 1952 | 10 | — | #3,773 |
| 1951 | 10 | — | #3,696 |
| 1950 | 8 | — | #4,280 |
| 1947 | 5 | — | #6,037 |
| 1943 | 5 | — | #5,302 |