Dragon Quest IV: Chapters of the Chosen, titled Dragon Warrior IV when initially localized to North America, is a role-playing video game, the fourth installment of the Dragon Quest video game series developed by Chunsoft and published by Enix, and the first of the Zenithian Trilogy. It was originally released for the Famicom on 11 February 1990 in Japan. A North American NES version followed in October 1992, and would be the last Dragon Quest game localized and published by Enix's Enix America Corporation subsidiary prior to its closure in November 1995, as well as the last Dragon Quest game to be localized into English prior to the localization of Dragon Warrior Monsters in December 1999. The game was remade by Heartbeat for the PlayStation, which eventually was available as an Ultimate Hits game. This was followed with a second remake developed by ArtePiazza for the Nintendo DS, released in Japan November 2007 and worldwide in September 2008. A version based on the Nintendo DS remake was released in 2014 for Android and iOS.

Dragon Quest IV differs from the rest of the series by breaking up the game into five distinct chapters, each of which focuses on a different protagonist or protagonists. The first four are told from the perspective of the Hero's future companions and the fifth one, from the Hero's perspective, brings all the characters together as they start their journey to save the world. The PlayStation remake adds a sixth chapter, which is retained in the DS remake.