Sierah is a very rare variant of Sierra that was most common in the 1990s and has all but disappeared.
Sierah is a girl name. It last appears in U.S. records in 2010. Sierah was first reported in SSA data in 1991 and peaked in 1996 (19 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2010 | 5 | 5 | #19,451 |
| 2008 | 7 | 7 | #15,176 |
| 2007 | 6 | 6 | #17,319 |
| 2006 | 13 | 13 | #9,207 |
| 2005 | 10 | 10 | #10,813 |
| 2004 | 5 | 5 | #18,421 |
| 2003 | 17 | 17 | #6,848 |
| 2002 | 17 | 17 | #6,656 |
| 2001 | 14 | 14 | #7,668 |
| 2000 | 15 | 15 | #7,118 |
| 1999 | 7 | 7 | #12,507 |
| 1998 | 9 | 9 | #9,994 |
| 1997 | 16 | — | #6,128 |
| 1996 | 19 | — | #5,259 |
| 1995 | 14 | — | #6,587 |
| 1994 | 5 | — | #15,429 |
| 1993 | 8 | — | #10,453 |
| 1992 | 7 | — | #11,570 |
| 1991 | 9 | — | #9,249 |