Rhiannon: Statistics About The Baby Name Rhiannon
| Year | Boy Rank | # Boys | % Boys | Girl Rank | # Girls | % Girls |
| 2007 | - | - | - | 944 | 283 | 0.0136% |
| 2006 | - | - | - | 738 | 374 | 0.0182% |
| 2005 | - | - | - | 750 | 349 | 0.0175% |
| 2004 | - | - | - | 623 | 432 | 0.0217% |
| 2003 | - | - | - | 582 | 472 | 0.0237% |
| 2002 | - | - | - | 537 | 507 | 0.0258% |
| 2001 | - | - | - | 497 | 551 | 0.0279% |
| 2000 | - | - | - | 454 | 609 | 0.0306% |
| 1999 | - | - | - | 423 | 651 | 0.0335% |
| 1998 | - | - | - | 465 | 554 | 0.0286% |
| 1997 | - | - | - | 643 | 346 | 0.0182% |
| 1996 | - | - | - | 714 | 296 | 0.0155% |
| 1995 | - | - | - | 625 | 350 | 0.0182% |
| 1994 | - | - | - | 586 | 389 | 0.0200% |
| 1993 | - | - | - | 708 | 302 | 0.0153% |
| 1992 | - | - | - | 676 | 325 | 0.0162% |
| 1991 | - | - | - | 708 | 299 | 0.0147% |
| 1990 | - | - | - | 672 | 320 | 0.0156% |
| 1989 | - | - | - | 678 | 301 | 0.0151% |
| 1988 | - | - | - | 784 | 240 | 0.0125% |
| 1987 | - | - | - | 696 | 262 | 0.0140% |
| 1986 | - | - | - | 628 | 296 | 0.0161% |
| 1985 | - | - | - | 669 | 271 | 0.0147% |
| 1984 | - | - | - | 535 | 359 | 0.0199% |
| 1983 | - | - | - | 524 | 362 | 0.0203% |
| 1982 | - | - | - | 514 | 389 | 0.0215% |
| 1981 | - | - | - | 512 | 386 | 0.0216% |
| 1980 | - | - | - | 498 | 409 | 0.0230% |
| 1979 | - | - | - | 483 | 422 | 0.0245% |
| 1978 | - | - | - | 434 | 459 | 0.0280% |
| 1977 | - | - | - | 418 | 491 | 0.0299% |
| 1976 | - | - | - | 593 | 272 | 0.0173% |
