《星际大战：旧共和国》（英语：Star Wars: The Old Republic，简称TOR或SWTOR）是以星际大战为背景的一部MMORPG，作为《星际大战：旧共和国武士》系列的续作，由BioWare制作并由EA于2011年底发行。游戏由BioWare在奥斯丁市的工作室主导开发，并收到了BioWare艾德蒙顿工作室的帮助。《旧共和国》于2008年10月21日宣布，并于2011年底在美国与欧洲发行。游戏仅支持Microsoft Windows平台。据估算，《旧共和国》的开发成本大约在3亿美元，是历史上开发成本最高的电玩游戏之一。

Star Wars: The Old Republic is a massively multiplayer online role-playing game (MMORPG) based in the Star Wars universe. Developed by BioWare Austin and a supplemental team at BioWare Edmonton, the game was first announced on October 21, 2008, at an invitation-only press event. The video game was released for the Microsoft Windows platform on December 20, 2011 in North America and part of Europe. Early access to the game began one week before release, on December 13, 2011, for those who had pre-ordered the game online; access opened in "waves" based on pre-order date.