The fourth season of the fantasy drama television series Game of Thrones premiered in the United States on HBO on April 6, 2014, and concluded on June 15, 2014. It was broadcast on Sunday at 9:00 pm in the United States, consisting of 10 episodes, each running approximately 50–60 minutes. The season is adapted primarily from the second half of A Storm of Swords, along with elements of A Feast for Crows and A Dance with Dragons, all novels from the A Song of Ice and Fire series by George R. R. Martin. The series is adapted for television by David Benioff and D. B. Weiss. HBO ordered the fourth season on April 2, 2013, which began filming in July 2013. The season was filmed primarily in Iceland, Northern Ireland and Croatia.

A Storm of Swords is the third of seven planned novels in A Song of Ice and Fire, a fantasy series by American author George R. R. Martin. It was first published on August 8, 2000, in the United Kingdom, with a United States edition following in November 2000. Its publication was preceded by a novella called Path of the Dragon, which collects some of the Daenerys Targaryen chapters from the novel into a single book.