Theo
Theo: name meaning, origin and popularity
Pronunciation (IPA): /ΛΞΈiΛΙΚ/ Β· /ΛΞΈioΚ/
Meaning and origin of Theo
- A male given name from Ancient Greek and nickname.
- A diminutive of the female given name Theodora.
Etymology
Short form of Theodore, or of the rare given names Theobald, Theophilus or Theodoric, or of Theodora.
How popular is Theo?
Since 1880, 3,503 girls and 35,830 boys in the U.S. have been named Theo (9% girls). Its highest rank for girls was #522 in 1887. Its highest rank for boys was #78 in 2023. In 2025 it ranked #82 for boys, with 3,966 babies given the name.
Names similar to Theo
Names that start with the same letters, most popular first.
More Greek boy names
Sibling name ideas for Theo
Sister and brother names that share Theo's Greek roots and are still in the U.S. top 1,000.
Theo FAQ
What does the name Theo mean?
A male given name from Ancient Greek and nickname. A diminutive of the female given name Theodora. Short form of Theodore, or of the rare given names Theobald, Theophilus or Theodoric, or of Theodora.
What is the origin of the name Theo?
Theo is listed as a name of Greek origin.
How popular is the name Theo?
Since 1880, 3,503 girls and 35,830 boys in the U.S. have been named Theo (9% girls). Its highest rank for girls was #522 in 1887. Its highest rank for boys was #78 in 2023. In 2025 it ranked #82 for boys, with 3,966 babies given the name.
Is Theo a boy or girl name?
Theo is mostly a boy name in the U.S.: 3,503 girls and 35,830 boys since 1880.
Popularity data: U.S. Social Security Administration baby name data, 1880β2025 (names given to 5+ babies per year). Origin and etymology text: Wiktionary, available under CC BY-SA 4.0.