Illianna is a rare variant of Iliana that peaked in 2018 and remains in steady use.
Illianna is a girl name. In 2025 it ranked #5,796 for girl births in the United States (and #10,079 across all names), given to 21 babies. Illianna first appears in 1995 and peaked in 2018 (27 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 21 | 21 | #5,796 |
| 2024 | 14 | 14 | #7,743 |
| 2023 | 21 | 21 | #5,828 |
| 2022 | 22 | 22 | #5,703 |
| 2021 | 16 | 16 | #7,063 |
| 2020 | 20 | 20 | #5,944 |
| 2019 | 12 | 12 | #8,794 |
| 2018 | 27 | 27 | #4,932 |
| 2017 | 25 | 25 | #5,233 |
| 2016 | 24 | 24 | #5,517 |
| 2015 | 22 | 22 | #5,904 |
| 2014 | 16 | 16 | #7,439 |
| 2013 | 22 | 22 | #5,895 |
| 2012 | 22 | 22 | #5,986 |
| 2011 | 26 | 26 | #5,276 |
| 2010 | 25 | 25 | #5,490 |
| 2009 | 21 | 21 | #6,399 |
| 2008 | 20 | 20 | #6,650 |
| 2007 | 11 | 11 | #10,388 |
| 2006 | 16 | 16 | #7,623 |
| 2005 | 14 | 14 | #8,057 |
| 2004 | 7 | 7 | #13,272 |
| 2003 | 9 | 9 | #10,753 |
| 2002 | 8 | 8 | #11,506 |
| 2001 | 10 | 10 | #9,647 |
| 2000 | 7 | 7 | #12,280 |
| 1999 | 8 | 8 | #10,710 |
| 1997 | 7 | — | #11,273 |
| 1995 | 5 | — | #14,261 |