Edmund Blackadder is the single name given to a collection of fictional characters who appear in the BBC mock-historical comedy series Blackadder, each played by Rowan Atkinson. Although each series is set within a different period of British history, all the Edmund Blackadders in the franchise are part of the same familial line. Each character also shares notable personality traits and characteristics throughout each incarnation. In a 2001 poll conducted by Channel 4, Edmund Blackadder was ranked third on their list of the 100 Greatest TV Characters.

Blackadder is a series of four period British sitcoms, plus several one-off instalments, which originally aired on BBC1 from 1983 to 1989. All television episodes starred Rowan Atkinson as the antihero Edmund Blackadder and Tony Robinson as Blackadder's dogsbody, Baldrick. Each series was set in a different historical period, with the two protagonists accompanied by different characters, though several reappear in one series or another, e.g., Melchett, Lord Percy Percy / Captain Darling and George.