The third season of the American fantasy drama television series House of the Dragon premiered on HBO on June 21, 2026, in the United States and concluded on August 9, 2026. It consists of eight episodes, each of approximately one hour. The season covers the events of the book Fire & Blood, a prequel novel in the A Song of Ice and Fire series by George R. R. Martin. The season was ordered on June 13, 2024, three days before the premiere of the second season. Ryan Condal serves as the sole showrunner for the season. The third season was filmed from March to October 2025.
The third season of the American fantasy drama television series House of the Dragon premiered on HBO on June 21, 2026, in the United States and concluded on August 9, 2026. It consists of eight episodes, each of approximately one hour. The season covers the events of the book Fire & Blood, a prequel novel in the A Song of Ice and Fire series by George R. R. Martin. The season was ordered on June 13, 2024, three days before the premiere of the second season. Ryan Condal serves as the sole showrunner for the season. The third season was filmed from March to October 2025.
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The third season of the American fantasy drama television series House of the Dragon premiered on HBO on June 21, 2026, in the United States and concluded on August 9, 2026. It consists of eight episodes, each of approximately one hour. The season covers the events of the book Fire & Blood, a prequel novel in the A Song of Ice and Fire series by George R. R. Martin. The season was ordered on June 13, 2024, three days before the premiere of the second season. Ryan Condal serves as the sole showrunner for the season. The third season was filmed from March to October 2025.
The season follows in the aftermath of the second season's final episodes, in which the war known as the "Dance of Dragons" between Rhaenyra Targaryen and her half-brother Aegon II Targaryen continues, causing House Targaryen to become further divided. Aegon is supported by the Green Council and his mother Alicent Hightower, while Rhaenyra is supported by the Black Council and her husband and uncle Daemon Targaryen, both sides seeking allies from the great houses of Westeros and fighting for the support of their armies to claim their rightful positions to the Iron Throne.
House of the Dragon features a large ensemble cast, including established actors such as Matt Smith, Emma D'Arcy, Olivia Cooke, James Norton, Steve Toussaint, Fabien Frankel, Matthew Needham, and Sonoya Mizuno. The season premiere was watched by 21.5 million viewers across both linear and streaming platforms worldwide upon its release. By the time the finale aired, the season had averaged 33 million worldwide viewers per episode. Critics praised the production values, visual effects, writing, Ramin Djawadi's musical score, action sequences, and performances (particularly Smith, D’Arcy, Cooke, and Norton). A fourth and final season was ordered in November 2025.
Development
On his personal blog in December 2023, George R. R. Martin stated that the third and fourth seasons were being written. In June 2024, ahead of the second-season premiere, the series was renewed for a third season. Like the second season, the third consists of eight episodes. A fourth and final season was ordered in November 2025.
Casting
In January 2025, James Norton was announced to have joined the cast for the third season as Ormund Hightower. In March 2025, Tommy Flanagan and Dan Fogler were announced to have joined the cast as Roderick Dustin and Torrhen Manderly respectively. In April 2025, Tom Cullen, Joplin Sibtain, and Barry Sloane were announced to have joined the cast as Luthor Largent, Jon Roxton, and Adrian Redfort respectively. In July 2025, Annie Shapero was announced to have joined the cast as Alysanne Blackwood.
Benjamin Evan Ainsworth was cast as Daeron Targaryen, but his casting was not officially confirmed until July 2026 due to a plot twist involving the character's identity. As a result, Ainsworth appeared uncredited in the season premiere and was not credited until the fourth episode.
Filming
Filming for the third season began on March 21, 2025, at Leavesden Studios, Watford, and concluded by that October.
Music
As with the first two seasons, Ramin Djawadi returned to compose the musical score for the third season. The 25-track score album was released on August 9, 2026, the same day that the season finale aired.
Broadcast
The third season premiered on June 21, 2026.
International broadcast
In New Zealand, the series is distributed by Sky's SoHo TV channel and Neon streaming service. In the Philippines, SKY broadcasts the show via its main cable television services and other digital streaming platforms. In India, JioHotstar distributes the show. In the UK, Ireland, Italy, Germany, Austria and Switzerland, the series airs on Sky Atlantic and its accompanying streaming service Now. In Canada, House of the Dragon is available on Bell Media's Crave streaming service and its HBO linear channel. In Australia, the series is available for streaming on Binge and Foxtel.
Critical response
On the review aggregation website Rotten Tomatoes, the third season holds an approval rating of 91% based on 163 reviews, with an average rating of 7.6/10. The website's critical consensus reads, "The fate of Westeros comes to a head in a reinvigorated and riveting third season of House of the Dragon, complete with wicked new characters and more thrilling battles, crafting a punchy prequel that matches the expectations of its predecessor." On Metacritic, which uses a weighted average, the third season received a score of 75 out of 100 based on 27 critic reviews, indicating "generally favorable" reviews.
Viewership
The third season premiere saw 21.5 million viewers across both linear and streaming platforms worldwide. By the time the season finale aired, the season had averaged 33 million worldwide viewers per episode.
