Theory (disambiguation)

Theory is a type of abstract or generalizing thinking, or its result.

Theory may also refer to:


 * Scientific theory, a well-substantiated explanation of some aspect of the natural world
 * Social theory, an analytical framework or paradigm that is used to study and interpret social phenomena
 * Philosophical theory, a position that explains or accounts for a general philosophy or specific branch of philosophy
 * Literary theory, the systematic study of the nature of literature, or any of a variety of scholarly approaches to reading texts
 * Mathematical theory, an area of mathematical research that is relatively self-contained
 * Theory (mathematical logic), a set of sentences (theorems) in a formal language
 * Theory, a type of argument in policy debate and Lincoln–Douglas debate
 * Theory (chess), consensus and literature on how the game should be played
 * Theory (clothing retailer), a New York-based fashion label
 * Theory Eatery, an American cuisine restaurant in Portland, Oregon
 * Theory (poem), a poem from Wallace Stevens's first book of poetry, Harmonium, published in 1917
 * Ki:Theory, the American recording artist and producer Joel Burleson
 * Theory of a Deadman, also known as Theory, a rock band
 * The former stage name of hip hop and smooth jazz artist Dax Reynosa
 * A computer algebra system software, predecessor to LiveMath.
 * Austin Theory, American professional wrestler