Total babies named Riannah (all years): 78
| Year | Girls (count / rank / %) |
|---|---|
| 2009 | 6 / #16837 / 0.000% |
| 2008 | 18 / #7337 / 0.001% |
| 2007 | 11 / #10668 / 0.001% |
| 2006 | 20 / #6551 / 0.001% |
| 2005 | 5 / #18569 / 0.000% |
| 2004 | 7 / #13876 / 0.000% |
| 2003 | 5 / #17805 / 0.000% |
| 2002 | 6 / #14993 / 0.000% |