The Tragedie of Gorboduc, also titled Ferrex and Porrex, is an English play from 1561. It was first performed at the Christmas celebration given by the Inner Temple in 1561, and performed at Whitehall before Queen Elizabeth I on 18 January 1561, by the Gentlemen of the Inner Temple. The authors were Thomas Norton and Thomas Sackville, said to be responsible for the first three Acts, and the final two, respectively.
The first quarto, published by the bookseller William Griffith, was published 22 September 1565. A second authorized quarto corrected by the authors followed in 1570, and was printed by John Day with the title The Tragedie of Ferrex and Porrex. A third edition was published in 1590 by Edward Allde.