Macbeth (full title The Tragedy of Macbeth) is a tragedy written by William Shakespeare. Set mainly in Scotland, the play dramatizes the damaging physical and psychological effects of political ambition on those who seek power for its own sake.

The play is believed to have been written between 1599 and 1606.  Macbeth is Shakespeare's shortest tragedy, and tells the story of a brave Scottish general named Macbeth who receives a prophecy from a trio of witches that one day he will become King of Scotland. Consumed by ambition and spurred to action by his wife, Macbeth murders King Duncan and takes the throne for himself. He is then wracked with guilt and paranoia, and he soon becomes a tyrannical ruler as he is forced to commit more and more murders to protect himself from enmity and suspicion. The bloodbath and consequent civil war swiftly take Macbeth and Lady Macbeth into the realms of arrogance, madness, and death.

In the backstage world of theatre, some believe that the play is cursed, and will not mention its title aloud, referring to it instead as "the Scottish play". Over the course of many centuries, the play has attracted some of the most renowned actors to the roles of Macbeth and Lady Macbeth. It has been adapted to film, television, opera, novels, comic books, and other media.

William Shakespeare (1564-1616) was an English poet, playwright and actor, widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. His extant works, including some collaborations, consist of about 38 plays, 154 sonnets, two long narrative poems, and a few other verses. His plays have been translated into every major living language and are performed more often than those of any other playwright.

Shakespeare was a respected poet and playwright in his own day, but his reputation did not rise to its present heights until the 19th century. His plays remain highly popular today and are constantly studied, performed, and reinterpreted in diverse cultural and political contexts throughout the world.

In 2016, celebrations will commence in the United Kingdom and across the world to honour The Bard's 400th anniversary.