Summon Night (サモンナイト, Samon Naito) is a series of role-playing video games, mixed with elements of a visual novel based dating sim.

The series is primarily developed by Flight-Plan, published by Banpresto, and owned by Bandai Namco Entertainment.

In April 2015, it was announced that Gaijinworks would translate and publish the latest entry in the series, Summon Night 5, in North America and Europe.

Lyndbaum is surrounded by four other worlds: Loreilal, the land from where mechanical creatures come; Silturn, the land of yokai; Sapureth, where angels and demons live; and Maetropa, from where half-humans, magical beasts, fairies and other mythical creatures hail.

Certain boundaries separate the worlds from each other, making the various summoning techniques the only way to transport things between them.