Everybody Mistaken is a 1716 comedy play by the British writer William Taverner. The title is also written as Every Body Mistaken.^[1] A farce, it is a reworking of The Comedy of Errors by William Shakespeare.^[2]

It premiered at the Lincoln's Inn Fields Theatre in London on 10 March 1716, and was followed as an afterpiece by the masque Presumptuous Love, also by Taverner.^[3] It opened the same night as Joseph Addison's The Drummer debuted at the rival Drury Lane Theatre.