Theia Girl

How popular is Theia?

#1,981 girl name in 2025

97 baby girls were named Theia in the US in 2025, making it the 1981st most popular girl name.

Compare with other names
1,211living people named Theia (est.)
7median age of people named Theia
1,217babies named Theia since 1880
1 in 34,179US babies born in 2025

Theia popularity over time

075150 18801900192019401960198020002020
Rank in 2025#1,981 for girls (▼ 158 from 2024)
Babies in 202597 girls
10-year trendRising (+28% babies vs 2015)
Earlier ranks#2,408 in 2015, #2,302 in 2020
Peak year2019 (113 girls)
Highest rank#1,802 in 2019
First recorded1967
Boys vs girls (last 10 years)0% boys, 100% girls
Chance a classmate shares it0.1% in a class of 25 kids born in 2025

Where Theia is most popular

Babies named Theia per 1,000 girls born in each state, 2021 to 2025. Darker means more common.

  1. Minnesota: 0.2 per 1,000 (17 girls)
  2. Oregon: 0.1 per 1,000 (7 girls)
  3. Michigan: 0.1 per 1,000 (13 girls)
  4. Florida: 0.1 per 1,000 (29 girls)
  5. California: 0.1 per 1,000 (47 girls)

Theia by decade

DecadeBaby girlsBest rank
1960s6#6,041
1970s5#8,421
1980s6#10,841
2000s21#11,454
2010s607#1,802
2020s572#1,823

Girl names about as popular as Theia

Questions

Is Theia a boy or girl name?
Theia is mostly a girl name. Over the last 10 years, 100% of babies named Theia were girls.
How popular is the name Theia?
97 baby girls were named Theia in the US in 2025, making it the 1981st most popular girl name.
When was Theia most popular?
Theia peaked in 2019, when 113 girls were given the name. Its highest rank was #1,802 in 2019.
How many people are named Theia?
1,217 babies have been named Theia in the US since 1880. We estimate about 1,211 of them are alive in 2026, with a median age of 7.
Where is Theia most popular?
From 2021 to 2025, Theia was most common in Minnesota, at 0.2 of every 1,000 girls born there.

Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.