The baby name Sincere appears in baby name data for the United States from 1976 to 2024. It was most popular in 2021 with 650 babies given the name.
In the later years of this period, Sincere has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1976 | 5 |
| 1994 | 5 |
| 1995 | 7 |
| 1997 | 7 |
| 1998 | 6 |
| 1999 | 103 |
| 2000 | 18 |
| 2000 | 218 |
| 2001 | 12 |
| 2001 | 217 |
| 2002 | 7 |
| 2002 | 219 |
| 2003 | 26 |
| 2003 | 289 |
| 2004 | 18 |
| 2004 | 327 |
| 2005 | 10 |
| 2005 | 376 |
| 2006 | 17 |
| 2006 | 403 |
| 2007 | 11 |
| 2007 | 428 |
| 2008 | 42 |
| 2008 | 407 |
| 2009 | 43 |
| 2009 | 361 |
| 2010 | 53 |
| 2010 | 417 |
| 2011 | 25 |
| 2011 | 392 |
| 2012 | 16 |
| 2012 | 365 |
| 2013 | 18 |
| 2013 | 417 |
| 2014 | 16 |
| 2014 | 551 |
| 2015 | 10 |
| 2015 | 555 |
| 2016 | 540 |
| 2017 | 617 |
| 2018 | 14 |
| 2018 | 617 |
| 2019 | 599 |
| 2020 | 36 |
| 2020 | 535 |
| 2021 | 14 |
| 2021 | 650 |
| 2022 | 649 |
| 2023 | 533 |
| 2024 | 535 |