Theia is a rare variant of Thea that peaked in 2019 and remains in steady use.
Theia is a girl name. In 2025 it ranked #1,989 for girl births in the United States (and #3,624 across all names), given to 97 babies. Theia first appears in 1967 and peaked in 2019 (113 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 97 | 97 | #1,989 |
| 2024 | 110 | 110 | #1,839 |
| 2023 | 98 | 98 | #2,016 |
| 2022 | 91 | 91 | #2,122 |
| 2021 | 99 | 99 | #1,979 |
| 2020 | 77 | 77 | #2,315 |
| 2019 | 113 | 113 | #1,813 |
| 2018 | 109 | 109 | #1,867 |
| 2017 | 112 | 112 | #1,841 |
| 2016 | 98 | 98 | #2,031 |
| 2015 | 76 | 76 | #2,428 |
| 2014 | 42 | 42 | #3,710 |
| 2013 | 18 | 18 | #7,008 |
| 2012 | 14 | 14 | #8,593 |
| 2011 | 17 | 17 | #7,403 |
| 2010 | 8 | 8 | #13,352 |
| 2009 | 9 | 9 | #12,363 |
| 2008 | 6 | 6 | #17,327 |
| 2007 | 6 | 6 | #17,468 |
| 1989 | 6 | — | #12,252 |
| 1973 | 5 | — | #9,681 |
| 1967 | 6 | — | #6,738 |