Deklan is an uncommon variant of Declan that peaked in 2018 and has grown less common since.
Deklan is a boy name. In 2025 it ranked #2,399 for boy births in the United States (and #5,163 across all names), given to 57 babies. Deklan first appears in 1998 and peaked in 2018 (193 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 57 | 57 | #2,399 |
| 2024 | 85 | 85 | #1,884 |
| 2023 | 82 | 82 | #1,915 |
| 2022 | 132 | 132 | #1,405 |
| 2021 | 148 | 148 | #1,282 |
| 2020 | 135 | 135 | #1,329 |
| 2019 | 165 | 165 | #1,173 |
| 2018 | 193 | 193 | #1,053 |
| 2017 | 181 | 181 | #1,081 |
| 2016 | 145 | 145 | #1,263 |
| 2015 | 164 | 164 | #1,150 |
| 2014 | 172 | 172 | #1,111 |
| 2013 | 175 | 175 | #1,070 |
| 2012 | 164 | 164 | #1,121 |
| 2011 | 111 | 111 | #1,470 |
| 2010 | 65 | 65 | #2,073 |
| 2009 | 41 | 41 | #2,910 |
| 2008 | 51 | 51 | #2,478 |
| 2007 | 37 | 37 | #3,101 |
| 2006 | 43 | 43 | #2,709 |
| 2005 | 27 | 27 | #3,551 |
| 2004 | 28 | 28 | #3,382 |
| 2003 | 20 | 20 | #4,146 |
| 2002 | 20 | 20 | #4,070 |
| 2001 | 15 | 15 | #4,946 |
| 2000 | 14 | 14 | #5,097 |
| 1999 | 8 | 8 | #7,317 |
| 1998 | 6 | 6 | #8,738 |