The name Theo is a girl's name of Greek origin meaning "divine gift, gift of God".

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Most commonly used as a short form of Theodora or Theodosia, this "boyish" nickname for girls is used much less frequently than Thea, Dora, or Teddy. One notable appearance however, was as the younger daughter in Sofia Coppola's film On the Rocks in 2020, while antiques expert, Theo Burrell was a real life bearer.
 
Given to 21 girls compared to more than 3900 boys in the US in a recent year, you may be surprised to learn that Theo was a Top 1000 name for girls from 1880 until 1930, and while some of this may have been down to errors in record keeping, this is unlikely to explain the 111 girls called Theo in 1924 or the 109 girls given the name in 1919.
 
With Scottie, Bennie, Stevie, and Davey on the rise for girls, alongside Margo, Cleo, Juno, and Theodora, perhaps you may hear of more girls called Theo in the future.

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Theo

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The name Theo is currently ranked #1000 in U.S. births. and peaked for girls at #522 in 1887. It is currently rising in popularity. The name is most popular in THEO, THEO, and THEO. Theo is also used for boys, ranking #82 in 2025 (more popular).

Theodora

The name Theo is a boy's name of Greek origin meaning "gift of God".

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See the popularity graph below for the name Theo? It's been heading straight uphill since 2010, when it hopped back onto the Top 1000 after a 60+ year absence.
 
Now in the Top 100 in this form, Theo's popularity is even wider given its common use as a nickname for Theodore, which made the Top 10 for the first time in 2022. This might be the generation of Theos.
 
Theo's newfound popularity extends far beyond the US and the rest of the English-speaking world. It's currently a Top 100 name in Germany, Brazil, Scandinavia, and beyond, as well as being a popular choice for pets.
 Theo first made an impact as the name of the only son on "The Cosby Show," earlier it was associated with Vincent van Gogh's supportive brother Theo.

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The name Theo is currently ranked #82 in U.S. births. and peaked for boys at #78 in 2023. The name is most popular in THEO, THEO, and THEO. Theo is occasionally used for girls in 2025.

Theobald

Theodore

Year	US rank	Births	Per million
2014	—	0	0
2015	—	0	0
2016	—	0	0
2017	—	0	0
2018	—	0	0
2019	#4,533	31	18.5
2020	#3,489	44	27.2
2021	#2,708	64	39
2022	#3,271	50	30.5
2023	#3,700	42	26.2
2024	#4,537	31	19.1
2025	—	0	0

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