The baby name Shannan appears in baby name data for the United States from 1966 to 1999. It was most popular in 1970 with 292 babies given the name.
In the later years of this period, Shannan has become less common than it once was.
| Year | Count |
|---|---|
| 1966 | 11 |
| 1967 | 9 |
| 1968 | 160 |
| 1969 | 275 |
| 1970 | 292 |
| 1971 | 241 |
| 1972 | 210 |
| 1973 | 151 |
| 1974 | 97 |
| 1975 | 110 |
| 1976 | 211 |
| 1977 | 174 |
| 1978 | 153 |
| 1978 | 5 |
| 1979 | 143 |
| 1980 | 152 |
| 1981 | 68 |
| 1982 | 100 |
| 1983 | 60 |
| 1984 | 56 |
| 1985 | 99 |
| 1986 | 27 |
| 1987 | 53 |
| 1988 | 7 |
| 1989 | 26 |
| 1990 | 27 |
| 1991 | 11 |
| 1992 | 58 |
| 1993 | 54 |
| 1994 | 46 |
| 1995 | 14 |
| 1996 | 24 |
| 1997 | 17 |
| 1999 | 5 |