Super Robot Wars Original Generation 2 (スーパーロボット大戦ORIGINAL GENERATION2 Sūpā Robotto Taisen ORIGINAL GENERATION 2), known as Super Robot Taisen Original Generation 2 in America, is a tactical role-playing game for the Nintendo Game Boy Advance. It is the second Super Robot Wars game that was officially released in North America.

The story selection system of Super Robot Wars Original Generation has been removed, replacing it with a branching storyline during certain intervals of the game. Original Generation 2 primarily focuses on one of the two selectable protagonists from the first game. In addition, a total of four new series (three of them past Super Robot Wars games, while one is a manga) appear, adding new characters, mechs, major events from the respective stories of the series and some original creations for this game itself. Coupled along with a redesigned user interface and longer battle animations, Original Generation 2 boasts an even greater amount of gameplay and background to the Original Generation universe.

The OVA series Super Robot Wars OG: The Animation serves as a sequel to the game.