Theo
Peaked at #78 nationally in 2023, based on real US Social Security Administration birth records.
Girls vs. boys, all-time
Since 1880, Theo has been recorded 10% of the time for girls and 90% of the time for boys.
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Theo — Girls (United States)
RisingPeak rank
#522
in 1887
Current rank
#4537
in 2024
Years tracked
101
1880–2024
Trend
Rising
Tracked since 1880, Theo reached its peak popularity for girls in 1887, ranking #522 nationally with 19 babies given the name that year.
Over the last 22 years of data, its rank has climbed from #17891 (2002) to #4537 (2024) — a 75% improvement.
As of 2024, Theo ranks #4537 nationally for girls, with 31 babies given the name that year.
Recent years
| Year | Rank | Births |
|---|---|---|
| 2024 | #4,537 | 31 |
| 2023 | #3,700 | 42 |
| 2022 | #3,271 | 50 |
| 2021 | #2,708 | 64 |
| 2020 | #3,489 | 44 |
| 2019 | #4,533 | 31 |
| 2018 | #13,673 | 7 |
| 2017 | #13,987 | 7 |
Theo — Boys (United States)
RisingPeak rank
#78
in 2023
Current rank
#80
in 2024
Years tracked
145
1880–2024
Trend
Rising
Tracked since 1880, Theo reached its peak popularity for boys in 2023, ranking #78 nationally with 4,137 babies given the name that year.
Over the last 10 years of data, its rank has climbed from #509 (2014) to #80 (2024) — a 84% improvement.
As of 2024, Theo ranks #80 nationally for boys, with 4,110 babies given the name that year.
Recent years
| Year | Rank | Births |
|---|---|---|
| 2024 | #80 | 4,110 |
| 2023 | #78 | 4,137 |
| 2022 | #98 | 3,639 |
| 2021 | #142 | 2,703 |
| 2020 | #172 | 2,225 |
| 2019 | #195 | 2,018 |
| 2018 | #243 | 1,554 |
| 2017 | #290 | 1,232 |
Source: U.S. Social Security Administration, National Data, 1880–2024.
Similar trajectory
Other names that peaked around the same era and rose or fell on a comparable curve.
Based on US data — boys' names only.
Common Questions
When was Theo most popular?
Theo was most popular in 2023, when it ranked #78 nationally for boys — the highest rank it has reached in this data.
Is Theo becoming more or less popular?
For girls, it's currently rising; for boys, it's currently rising, based on the last decade of SSA data.
How many babies have been named Theo?
At least 35,340 babies have been recorded with the name Theo in the US since 1880, according to Social Security Administration birth records.
Looking for more name ideas like Theo? Try the Baby Name Generator or compare it against other names on the Name Trends hub.