The Legend of Heroes: Trails of Cold Steel is a 2013 role-playing video game developed by Nihon Falcom. The game is a part of the Trails series, itself a part of the larger The Legend of Heroes series. It was initially released in Japan for the PlayStation 3 and PlayStation Vita before being localized in English by Xseed Games in 2015.

Trails, known as Kiseki (軌跡) in Japan, is a series of science fantasy role-playing video games by Nihon Falcom. It is a part of their larger The Legend of Heroes franchise and began with the release of Trails in the Sky in 2004. Trails features a large cast of characters and consists of interconnected story arcs set in different nations on the continent of Zemuria: Liberl, Crossbell, Erebonia, and Calvard. The series primarily features turn-based combat, with a few spin-offs and more recent entries featuring other styles of gameplay.