The 400-year-old castle will be available gala dinners, drinks receptions and parties.
Nijo Castle was built in 1602 by Tokugawa Ieyasu before being used by a succession of military leaders known as Shogun.
Bookings can be made through DMC The J Team.
Kyoto Convention Bureau’s international marketing co-ordinator James Widgren said: "Kyoto is home to more UNESCO World Heritage sites than any other city in the world. We are incredibly lucky that so many of these historic venues are willing to open their doors to the meetings and events industry, allowing business visitors from around the world to enjoy their unique offering.
"Nijo Castle is a truly unusual space, it will allow organisers to think creatively as they develop events following the Castle’s opening later this year."