Theodosius

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A few things about Theodosius you might not know, from US birth records and Wikipedia. Handy for convincing a partner, or a grandparent.

⭐ Famous Theodosius

Theodosius Dobzhansky

Geneticist and evolutionary biologist (1900-1975)

Choose Theodosius and your child shares a first name with Theodosius Dobzhansky, a geneticist and evolutionary biologist. A ready-made answer when someone asks “Theodosius, like who?” Theodosius Dobzhansky's Wikipedia article is available in 47 languages, a good sign of just how widely known they are.

Read about Theodosius Dobzhansky on Wikipedia ↗ (opens in a new tab)

Photo: Unknown authorUnknown author, Public domain (opens in a new tab), via Wikimedia Commons

• 👶How commonAbout 1 in every 169,492 baby boys born in the US in 2025 was named Theodosius, 10 babies in all. In a typical school of 500 kids, your Theodosius would very likely be the only one.
• 📜HistoryTheodosius first shows up in US birth records in 2025, the first year at least 5 babies got it. That makes it a fairly new name, younger than many of today's parents.
• 🏆Best yearTheodosius is at its all-time high right now: #7,679 in 2025.
• ✨New on the sceneTheodosius wasn't given to enough babies to be counted in 2000. It only took off after 2025.
• 💬MeaningIn Greek, Theodosius means “gift of God”.

About the name Theodosius

Theodosius is a boy name of Greek origin meaning “gift of God”. It has 10 letters and 3 syllables, starting with T and ending in “-ius”. US birth records list Theodosius for boys only in 2025, the one year at least 5 babies got it. Its best year was 2025, when it ranked #7,679 among boy names. In 2025 it ranked #7,679, with 10 babies.

Origin:Greek names