Valkyria Chronicles is a series of military-themed tactical role-playing video games created by Ryutaro Nonaka and Shuntaro Tanaka, and developed by Sega. The series began with Valkyria Chronicles, which was released for the PlayStation 3 in 2008, and later for Microsoft Windows, PlayStation 4 and the Nintendo Switch. Two sequels have been released on the PlayStation Portable, with the latest installment, Valkyria Chronicles 4, released for the PlayStation 4, Xbox One, Nintendo Switch and Microsoft Windows. The series has also been expanded into anime and manga media.

Tactical role-playing games, also known as strategy role-playing games and in Japan as simulation RPGs, are a video game genre that combines core elements of role-playing video games with those of tactical strategy video games. The formats of tactical RPGs are much like traditional tabletop role-playing games and strategy games in appearance, pacing, and rule structure. Likewise, early tabletop role-playing games are descended from skirmish wargames such as Chainmail, which were primarily concerned with combat.