Siena is an established variant of Sienna that peaked in 2018 and remains in steady use.
Siena is a girl name. In 2025 it ranked #610 for girl births in the United States (and #1,206 across all names), given to 479 babies. Siena first appears in 1965 and peaked in 2018 (496 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 479 | 479 | #610 |
| 2024 | 467 | 467 | #634 |
| 2023 | 444 | 444 | #665 |
| 2022 | 407 | 407 | #721 |
| 2021 | 488 | 488 | #613 |
| 2020 | 454 | 454 | #639 |
| 2019 | 486 | 486 | #620 |
| 2018 | 496 | 496 | #611 |
| 2017 | 455 | 455 | #654 |
| 2016 | 476 | 476 | #630 |
| 2015 | 445 | 445 | #644 |
| 2014 | 406 | 406 | #696 |
| 2013 | 411 | 411 | #689 |
| 2012 | 454 | 454 | #631 |
| 2011 | 475 | 475 | #606 |
| 2010 | 485 | 485 | #608 |
| 2009 | 481 | 481 | #627 |
| 2008 | 475 | 475 | #649 |
| 2007 | 452 | 452 | #657 |
| 2006 | 455 | 455 | #631 |
| 2005 | 293 | 293 | #866 |
| 2004 | 182 | 182 | #1,224 |
| 2003 | 146 | 146 | #1,382 |
| 2002 | 155 | 155 | #1,274 |
| 2001 | 129 | 129 | #1,465 |
| 2000 | 171 | 171 | #1,175 |
| 1999 | 134 | 134 | #1,335 |
| 1998 | 130 | 130 | #1,353 |
| 1997 | 101 | — | #1,592 |
| 1996 | 95 | — | #1,624 |
| 1995 | 68 | — | #2,025 |
| 1994 | 52 | — | #2,458 |
| 1993 | 45 | — | #2,718 |
| 1992 | 28 | — | #3,857 |
| 1991 | 24 | — | #4,313 |
| 1990 | 22 | — | #4,505 |
| 1989 | 22 | — | #4,348 |
| 1988 | 17 | — | #5,040 |
| 1987 | 10 | — | #7,280 |
| 1986 | 11 | — | #6,528 |
| 1985 | 10 | — | #6,885 |
| 1984 | 6 | — | #10,215 |
| 1983 | 7 | — | #8,866 |
| 1982 | 6 | — | #10,322 |
| 1980 | 5 | — | #11,892 |
| 1973 | 5 | — | #9,586 |
| 1965 | 5 | — | #7,377 |