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By Clare Green · Aug 2026

Theory

OriginEnglish word name from Greek
Meaning"idea, speculation"
GenderBoy
Also a girl's nameShow me Theory as a girl's name

About Theory

Variation of Thierry

World rankings

#1859🫐 Nameberry

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These 20 names were selected by our users looking for other names like Theory.

Theory in pop culture

  • Theory is a contemplative and rational type of abstract or generalizing thinking

    or the results of such thinking.

  • "Big Bang Theory

    " TV show

  • Also a name for girls in the vein of Faith

    Hope, and Charity

  • Game Theory and Film Theory

    two popular channels on YouTube run by MatPat

Theory in blog posts

The Craziest Baby Names in America
Freckle-Faced Names: Polly, Peggy & Penny

Theory on more lists

6 Letter Boy Names
Names Ending in Y for Boys
Two Syllable Names for Boys
Names That Mean Name
Names that end in y

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