Boy’s name · Greek

Theo

How to say it: THEE-oh · /ˈθioʊ/

Short form of Theodore or Theodoros, from Greek meaning 'gift of God'.

Theo was the 90th most popular boys’ name in the United States in 2025, given to 3,945 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are up 5.0-fold in ten years, and it is projected to rise to #18 by 2030.

Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures

#90for boys in 2025
1 in 777US babies
3,945born in 2025
#18projected for 2030
2020sits peak decade
1 in 33chance a classmate shares it

Key facts

Key facts about Theo
Rank among boys’ names, 2025#90
Babies born in 20253,945
Share of births1 in 777
Peak decade2020s
Change over 10 years×5.0
Projected rank for 2030 (estimate)#18
In France, 2025#43 among boys’ names, 1,200 births

Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.

Its life, decade by decade

Right now marks the high point for Theo in the 2020s after steady climbing. At its peak, additional growth is expected.

1900195020002020–25
Peak: 2,008 per million births, 2020s.

What goes with it

Breezy and bright in two syllables with a soft breath of sound, Theo feels lively and warm. Milo shares its playful compact style.

Parents who love Theo also love

Nicknames

  • Thee

Other spellings

Honouring a Theo in the family

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Theo is about 1 in 33.

Around the world

This spelling is used in Danish, Dutch, English, Finnish, French, German, Greek, Italian, Norwegian, Portuguese, Spanish, Swedish.

In France: #43 for boys in 2025.

England and Wales: #12. Ireland: #21.

Famous people named Theo

From Wikidata and Wikipedia

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