Stargate Universe (often abbreviated as SGU) is a military science fiction drama television series and part of MGM's Stargate franchise. It follows the adventures of a present-day, multinational exploration team traveling on the Ancient spaceship Destiny several billion light years distant from the Milky Way Galaxy. They are now trying to figure out a way to return to Earth, while simultaneously trying to explore and to survive in their unknown area of the universe. The series, created by Brad Wright and Robert C. Cooper, premiered in the United States on Syfy on October 2, 2009. The series featured an ensemble cast and was primarily filmed in and around Vancouver, British Columbia, Canada. A second season of 20 episodes was announced by Syfy in December 2009.

The first 10 episodes of the second season were aired in the United States beginning on September 28, 2010, and the final 10 were shown beginning on March 7, 2011. Syfy announced on December 16, 2010, that it would not be picking up Stargate Universe for a third season. The second season of SGU ended as a semi-cliffhanger.

There is an ongoing comic book series set after the end of season 2, but the original creators and writers are not involved.