The baby name Deidre appears in baby name data for the United States from 1944 to 2004. It was most popular in 1970 with 598 babies given the name.
In the later years of this period, Deidre has become less common than it once was.
| Year | Count |
|---|---|
| 1944 | 6 |
| 1945 | 15 |
| 1946 | 41 |
| 1947 | 67 |
| 1948 | 97 |
| 1949 | 103 |
| 1950 | 91 |
| 1951 | 95 |
| 1952 | 89 |
| 1953 | 80 |
| 1954 | 39 |
| 1955 | 69 |
| 1956 | 129 |
| 1957 | 172 |
| 1958 | 141 |
| 1959 | 214 |
| 1960 | 404 |
| 1961 | 529 |
| 1962 | 485 |
| 1963 | 549 |
| 1964 | 547 |
| 1965 | 374 |
| 1966 | 478 |
| 1967 | 426 |
| 1968 | 410 |
| 1969 | 439 |
| 1970 | 598 |
| 1971 | 409 |
| 1972 | 254 |
| 1973 | 290 |
| 1974 | 262 |
| 1975 | 288 |
| 1976 | 251 |
| 1977 | 312 |
| 1978 | 306 |
| 1979 | 338 |
| 1980 | 335 |
| 1981 | 305 |
| 1982 | 268 |
| 1983 | 301 |
| 1984 | 326 |
| 1985 | 403 |
| 1986 | 419 |
| 1987 | 427 |
| 1988 | 272 |
| 1989 | 216 |
| 1990 | 158 |
| 1991 | 323 |
| 1992 | 386 |
| 1993 | 168 |
| 1994 | 94 |
| 1995 | 85 |
| 1996 | 49 |
| 1997 | 65 |
| 1998 | 5 |
| 1999 | 13 |
| 2000 | 6 |
| 2001 | 7 |
| 2002 | 5 |
| 2004 | 12 |