Theia
Girl name · #1987 in 2025 · Very rare
Theia is currently the #1987 girl name in the United States — 97 babies received it in 2025. A decade ago it stood at #2408, so the name has been rising over the past ten years. Roughly one in every 18,557 girls born in 2025 was named Theia.
Babies named Theia per year. Source: SSA.
The 58-year story
Theia first appears in the Social Security records in 1967, when 6 girls received the name. Its peak came in 2019, when 113 girls were named Theia — good for #1802 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Theia against up to 5 other names.
Uniqueness: will there be another Theia in class?
On our rarity read — which blends how common Theia is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Theia will likely be the only one in the room, with the occasional spelling-out as the price.
Where Theia is most common
State-level data for Theia is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Theia
Statistically, parents drawn to Theia tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Kaleia, Aletheia, Laia, Junia, and Anabia.
KaleiaAletheiaLaiaJuniaAnabiaAleiaElliaAvia
Rank history (last 25 years)
| Year | Babies named Theia | Rank |
|---|---|---|
| 2025 | 97 | #1981 |
| 2024 | 110 | #1823 |
| 2023 | 98 | #2002 |
| 2022 | 91 | #2103 |
| 2021 | 99 | #1971 |
| 2020 | 77 | #2302 |
| 2019 | 113 | #1802 |
| 2018 | 109 | #1852 |
| 2017 | 112 | #1828 |
| 2016 | 98 | #2017 |
| 2015 | 76 | #2408 |
| 2014 | 42 | #3652 |
| 2013 | 18 | #6729 |
| 2012 | 14 | #8208 |
| 2011 | 17 | #7118 |
| 2010 | 8 | #12276 |
| 2009 | 9 | #11459 |
| 2008 | 6 | #15405 |
| 2007 | 6 | #15491 |
| 1989 | 6 | #10847 |
| 1973 | 5 | #8423 |
| 1967 | 6 | #6042 |
Frequently asked questions
Is Theia a popular girl name?
Theia ranked #1987 among girls in 2025 with 97 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2408.
When was the name Theia most popular?
Theia peaked in 2019, when 113 American girls received the name (ranked #1802 that year). Since 2019 the name has declined from that high.
How rare is the name Theia?
In 2025, roughly 1 in 18,557 newborn American girls was named Theia. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.