This article describes the blasphemy law in the United Kingdom.
The common law offences of blasphemy and blasphemous libel were abolished by the Criminal Justice and Immigration Act 2008. See also the Racial and Religious Hatred Act 2006.
The offence of blasphemy was originally part of canon law. In 1378, at the command of Pope Gregory XI, persecution of John Wycliffe and the Lollards was undertaken. However, the only punishment available to the bishops at the time was excommunication. The clergy, dissatisfied with this, forged an Act of parliament, without the assent of the Lords or Commons, enabling the arrest and imprisonment of heretics. In the following year an attempt was made by Parliament to repeal the Act, which prompted a series of prosecutions, and the repeal failed. Not satisfied with their new powers, further were sought and granted under King Henry IV in 1400. These new powers allowed the bishops to arrest and imprison all preachers of heresy, all schoolmasters infected with heresy, and all owners and writers of heretical books. On refusal to abjure (solemnly renounce) or relapse after abjuration, the heretic could be handed over to civil officers, to be taken to a high place before the people and there be burnt, so that their punishment might strike fear in the hearts and minds of others. In April, 1399, William Sawyer was convicted of heresy and put to penance by his bishop. He was again arrested on 12 February, 1400, as a relapsed heretic and was convicted by the Archbishop of Canterbury. Sawyer was burnt on 2 March, eight days before the power to inflict such punishment was granted. There is a long list of those burnt, or hanged and burnt, between 1414 and 1506. In the 17th century, blasphemy was declared a common law offence by the Court of King's Bench, punishable by the common law courts.
In 1656, the Quaker James Naylor was sentenced by the Second Protectorate Parliament to flogging, to be pilloried, branded on the forehead and the piercing of his tongue by a red-hot poker, and thereafter kept in prison on hard labour indefinitely. In sentencing Naylor, the judge, Lord Commissioner Whitelock, makes the distinction between heresy and blasphemy