星际争霸（英语：StarCraft，中国大陆和香港译作「星际争霸」）是由暴雪娱乐有限公司（Blizzard Entertainment）制作发行的一系列战争题材科幻游戏。游戏系列主要由Chris Metzen与James Phinney设计开发。游戏的剧情发生在26世纪初期的克普鲁星区——位于遥远的银河系中心。剧情讲述了三个种族之间的斗争，包括来自地球的人类、神秘而强大的星灵以及异形异虫。1998年即时战略游戏《星际争霸》发行，随后便产生了一大批衍生产品，包括8部相关题材的小说、1款桌上游戏以及其他授权商品比如模型玩具等。

StarCraft is a military science fiction media franchise created by Chris Metzen and James Phinney, and owned by Blizzard Entertainment. The series centers on a galactic struggle for dominance between four species—the adaptable and mobile Terrans, the ever-evolving insectoid Zerg, the powerfully enigmatic Protoss, and the "god-like" Xel'Naga creator race—in a distant part of the Milky Way galaxy known as the Koprulu Sector at the beginning of the 26th century. The series debuted with the video game StarCraft in 1998. Since then it has grown to include a number of other games as well as eight novelizations, two Amazing Stories articles, a board game, and other licensed merchandise such as collectible statues and toys.