Valkyria Chronicles is a tactical role-playing game developed and published by Sega for the PlayStation 3 in 2008. A Microsoft Windows version was released on November 11, 2014. A remastered version for PlayStation 4 was released in Japan on February 10, 2016, with a Western release on May 17, 2016. The game was released digitally for the Nintendo Switch on September 27, 2018 in Japan and on October 16, 2018 in North America and Europe. The later versions include previously released downloadable content.

The game is set in Europa, a fictional region loosely based on Europe during the early years of World War II. Because of its abundance of Ragnite ore, which takes the place of petroleum in the game setting, the neutral nation of Gallia comes under attack from the East Europan Imperial Alliance, which is itself engaged in war with the Atlantic Federation. Players take control of a unit of the Gallian Militia, dedicated to repelling the invasion. The game's visuals, which use Sega's CANVAS graphics engine, resemble pencil drawings in motion.

Valkyria Chronicles earned numerous awards from several notable video game publications and has been cited as one of the greatest video games of all time. The success of the title spawned a media franchise, including several manga titles and an anime series. Two sequels were released for PlayStation Portable: Valkyria Chronicles II in 2010, and Valkyria Chronicles III in 2011. A spin-off, Valkyria Revolution, was released on January 19, 2017, for the PlayStation 4, PlayStation Vita, and Xbox One. The fourth entry, Valkyria Chronicles 4 was released in 2018 for PlayStation 4, Nintendo Switch, Xbox One and Microsoft Windows.