Halt and Catch Fire is an American period drama television series created by Christopher Cantwell and Christopher C. Rogers. It aired on the cable network AMC in the United States from June 1, 2014, to October 14, 2017, spanning four seasons and 40 episodes. It depicts a fictionalized insider's view of the personal computer revolution of the 1980s and the early days of the World Wide Web in the early 1990s. The show's title refers to Halt and Catch Fire (HCF), an idiom for computer machine code instructions whose execution would cause the computer's central processing unit to cease meaningful operation (and in an exaggeration, catch fire).

In season one, the fictional company Cardiff Electric makes its first foray into personal computing with a project to reverse engineer an IBM PC and build a clone, led by entrepreneur Joe MacMillan (Lee Pace) with the help of computer engineer Gordon Clark (Scoot McNairy) and prodigy programmer Cameron Howe (Mackenzie Davis). Seasons two and three shift focus to a startup company, the online community Mutiny, headed by Cameron and Gordon's wife Donna (Kerry Bishé), while Joe ventures out on his own. The fourth and final season focuses on competing web search engines involving all the principal characters.

Halt and Catch Fire marked the first jobs that Cantwell and Rogers had in the television industry. They wrote the pilot hoping to use it to secure jobs as writers, but they instead landed their own series with AMC. The initial inspiration for the series was drawn from Cantwell's childhood in the Dallas–Fort Worth area, located within northern Texas's Silicon Prairie, where his father worked as a software salesman. The creators subsequently researched the contributions of Texan firms to the emerging personal computing industry during the 1980s. Self-produced by the network and mostly filmed in the Atlanta, Georgia, area, the series is set in the Silicon Prairie for its first two seasons and Silicon Valley for its latter two.

Halt and Catch Fire experienced low viewership ratings throughout its run, with only the first episode surpassing one million viewers for its initial broadcast. The series debuted to generally favorable reviews, though many critics initially found it derivative of other series such as Mad Men. In each subsequent season, the series grew in acclaim, and by the time it concluded, critics considered it among the greatest shows of the 2010s. In 2022, Rolling Stone ranked it the 55th-greatest television series of all time, based on a poll of 46 actors, writers, producers, and critics.