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. The character designs are by Izuka Takeshi. The series has had six main line entries, and seven spin-off entries, spanning the PlayStation, PlayStation 2, PlayStation 4, PlayStation Portable, PlayStation Vita, Game Boy Advance and Nintendo DS video game consoles.

Until 2015, no main entries to the series had been released outside of Japan. The only titles localized into English were the spinoff games Summon Night: Twin Age, Summon Night: Swordcraft Story and its sequel, Summon Night: Swordcraft Story 2.

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. On December 15, 2015, it was released in North America but a European release never came to fruition. The game was considered a success in North America, with its sales being enough to warrant Gaijinworks to translate its sequel Summon Night 6 , which was released in both North America and Europe in late 2017. The Summon Night series has sold a total of 1.904 million copies.