Theo
BoysBest rank #78 (2023) · ranked in 4 years
With a peak of #78 in 2023, Theo appeared in the rankings across 2022-2025.
It climbed from #98 in 2022 to #82 in 2025.
The latest tally (2025) puts Theo at #82.
4,140 newborns received the name Theo in 2023, its peak year.
Theo was most popular around 2023, making it characteristic of the 2020s generation.
Where Theo is most popular
In 2025, Theo was recorded in 49 of the 51 US jurisdictions the SSA reports on, with 3,938 births nationwide.
The largest share came from California at 484 births, 12.3% of the national total, where it ranked #129 that year.
By census region the name skews South, which accounts for 33.3% of Theo births, against 20.1% Northeast, 21.6% Midwest, 25.0% West.
State rankings spread more than the national figure suggests: Theo placed as high as #45 in Hawaii and as low as #422 in Alabama.
The 2 jurisdictions without a figure are not zeros. SSA withholds any name with fewer than 5 occurrences in a given state and year to protect privacy.
Top states, 2025
- 1California484 · #129 there
- 2Texas315 · #210 there
- 3Florida258 · #135 there
- 4New York258 · #113 there
- 5Pennsylvania161 · #125 there
Share by census region
- Northeast20.1%
- Midwest21.6%
- South33.3%
- West25.0%
Shares are of this name's national total, not of each state's births. SSA withholds any name under 5 occurrences per state and year. Browse all states
Frequently asked questions
- Is Theo a popular name?
- Theo reached a best rank of #78 in 2023 and has charted in 4 years.
- Where does Theo rank now?
- In the most recent data (2025), Theo ranks #82.
- Is Theo a boy or girl name?
- It is recorded primarily as a boys' name.
- When was Theo most popular?
- Theo peaked around 2023.
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Source: U.S. Social Security Administration (SSA) - Popular Baby Names (national)