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BabyNames
Boy name#613 of boy names

Theo

Pronounced TH IY1 OW0 (ARPABET)

  • 2 syllables
  • Peaked 2023
  • 145 years in use
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How popular is Theo?

Theo is a boys' name, and has been in the record since the data starts in 1880. It has been given to 35,388 children — the 613th most common boys' name on record.

It is climbing hard: about nine times as many births in the past decade as in the one before it. Its best single year was 2023, when 4,154 children were given it.

01,2502,5003,7505,00018901920195019802010
2023Boys: 4,154Girls: 42

Nicknames

Theo is itself a short form of Theodore.

Characteristics

  • 2 syllables
Phonetic detail
Pronunciations:
TH IY1 OW0
Stress pattern:
10
Syllables:
2

Stress digits mark unstressed (0), primary (1) and secondary (2) syllables.

Names like Theo

Same first letter and syllable count, peaking around the same time.

Sibling names for Theo

Names from the same era with a matching rhythm but a different initial.

Frequently asked questions

How popular is the name Theo?
Theo ranks 613th among boys' names in US records, with 35,388 births since 1880. Over the past decade it accounts for 23,383.
Is Theo a unisex name?
No. Theo is recorded almost entirely as a boys' name; births to the other gender are too few to register as a share.
When was Theo most popular?
2023, when 4,154 children were given the name. It has been in use for 145 years and is still recorded as of 2024.