Robert Southwell, also Saint Robert Southwell, was an English Roman Catholic priest of the Jesuit Order. He was also a poet and clandestine missionary in post-Reformation England.
After being arrested and tortured by Sir Richard Topcliffe, Southwell was tried and convicted of high treason for his links to the Holy See. On 21 February 1595, Southwell was hanged, drawn and quartered at Tyburn. In 1970, he was canonised by Pope Paul VI as one of the Forty Martyrs of England and Wales.