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Flattery (also called adulation or blandishment) is the act of giving excessive compliments, generally for the purpose of ingratiating oneself with the subject. It is used in pick-up lines when attempting to initiate romantic courtship.

Historically, flattery has been used as a standard form of discourse when addressing a king or queen. In the Renaissance, it was a common practice among writers to flatter the reigning monarch, as Edmund Spenser flattered Queen Elizabeth I in The Faerie Queene, William Shakespeare flattered King James I in Macbeth and Niccolò Machiavelli flattered Lorenzo II de' Medici in The Prince.

Most associations with flattery, however, are negative. Negative descriptions of flattery range at least as far back in history as The Bible. In the Divine Comedy, Dante depicts flatterers wading in human excrement, stating that their words were the equivalent of excrement, in the second bolgia of 8th Circle of Hell.

An insincere flatterer is a in many literary works. Examples include Wormtongue from J. R. R. Tolkien's The Lord of the Rings, Goneril and Regan from King Lear, and Iago from Othello.

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