Sion is a rare boys' name that has climbed to its highest level yet, peaking in 2022.
Sion is predominantly a boy name. In 2025 it ranked #2,981 for boy births in the United States (and #6,393 across all names), given to 42 babies. Sion first appears in 1912 and peaked in 2022 (43 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 42 | 42 | — | #2,981 |
| 2024 | 36 | 36 | #17,352 | #3,679 |
| 2023 | 43 | 43 | — | #2,942 |
| 2022 | 48 | 48 | #17,423 | #2,954 |
| 2021 | 33 | 33 | — | #3,486 |
| 2020 | 37 | 37 | — | #3,123 |
| 2019 | 38 | 38 | — | #3,139 |
| 2018 | 21 | 21 | — | #4,718 |
| 2017 | 26 | 26 | #12,585 | #5,270 |
| 2016 | 24 | 24 | #15,984 | #5,284 |
| 2015 | 22 | 22 | — | #4,529 |
| 2014 | 25 | 25 | — | #4,114 |
| 2013 | 20 | 20 | — | #4,773 |
| 2012 | 30 | 30 | — | #3,614 |
| 2011 | 27 | 27 | — | #3,876 |
| 2010 | 22 | 22 | — | #4,502 |
| 2009 | 23 | 23 | — | #4,414 |
| 2008 | 27 | 27 | #9,998 | #6,021 |
| 2007 | 21 | 21 | #20,140 | #5,638 |
| 2006 | 23 | 23 | #19,659 | #5,042 |
| 2005 | 15 | 15 | — | #5,538 |
| 2004 | 26 | 26 | #11,489 | #4,974 |
| 2003 | 21 | 21 | #15,503 | #5,231 |
| 2002 | 30 | 30 | #13,426 | #3,767 |
| 2001 | 25 | 25 | — | #3,496 |
| 2000 | 30 | 30 | #9,784 | #4,041 |
| 1999 | 20 | 20 | #12,512 | #5,276 |
| 1998 | 7 | 7 | — | #8,326 |
| 1996 | 6 | — | — | #8,857 |
| 1995 | 5 | — | — | #10,109 |
| 1994 | 13 | — | — | #4,755 |
| 1992 | 6 | — | — | #8,298 |
| 1991 | 6 | — | — | #8,097 |
| 1988 | 6 | — | — | #7,130 |
| 1986 | 6 | — | — | #6,618 |
| 1985 | 5 | — | — | #7,437 |
| 1980 | 7 | — | — | #5,441 |
| 1979 | 9 | — | — | #4,350 |
| 1978 | 6 | — | — | #5,668 |
| 1977 | 8 | — | — | #4,527 |
| 1976 | 5 | — | — | #6,373 |
| 1975 | 8 | — | — | #4,258 |
| 1971 | 5 | — | — | #5,549 |
| 1946 | 5 | — | — | #3,957 |
| 1928 | 5 | — | — | #4,653 |
| 1927 | 5 | — | — | #4,713 |
| 1912 | 5 | — | — | #2,860 |