Total babies named Rhianon (all years): 355
| Year | Girls (count / rank / %) |
|---|---|
| 2008 | 7 / #15060 / 0.000% |
| 2005 | 5 / #18564 / 0.000% |
| 2004 | 12 / #9151 / 0.001% |
| 2003 | 5 / #17803 / 0.000% |
| 2002 | 6 / #14991 / 0.000% |
| 2001 | 8 / #11829 / 0.000% |
| 2000 | 13 / #7939 / 0.001% |
| 1999 | 8 / #11144 / 0.000% |
| 1998 | 14 / #7012 / 0.001% |
| 1997 | 5 / #15568 / 0.000% |
| Year | Girls (count / rank / %) |
|---|---|
| 1996 | 7 / #11511 / 0.000% |
| 1995 | 11 / #7945 / 0.001% |
| 1994 | 12 / #7489 / 0.001% |
| 1993 | 12 / #7362 / 0.001% |
| 1992 | 12 / #7407 / 0.001% |
| 1991 | 11 / #7834 / 0.001% |
| 1990 | 11 / #7737 / 0.001% |
| 1989 | 17 / #5222 / 0.001% |
| 1988 | 12 / #6580 / 0.001% |
| 1987 | 9 / #7841 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1986 | 13 / #5683 / 0.001% |
| 1985 | 15 / #5026 / 0.001% |
| 1984 | 16 / #4674 / 0.001% |
| 1983 | 19 / #4075 / 0.001% |
| 1982 | 15 / #4888 / 0.001% |
| 1981 | 10 / #6691 / 0.001% |
| 1980 | 16 / #4687 / 0.001% |
| 1979 | 9 / #7156 / 0.001% |
| 1978 | 25 / #3172 / 0.002% |
| 1977 | 13 / #5140 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1976 | 7 / #7910 / 0.000% |