The Rikyū-in (離宮院跡) is the ruins of a detached palace located in the Obata neighborhood of the city of Ise, Mie Prefecture, Japan.

The official kitchens, where food was prepared as sacred offerings to the shrine, were also located within this complex.

The palace was built in 798 AD, after the previous complex located in what is now the Miyajiri neighborhood of Ise was destroyed by flooding.

It was destroyed by fire in 839 AD, and although rebuilt a few years later, the Saiō never returned, preferring to remain at the Saikū palace complex instead.

The Rikyū-in was destroyed by arson in 1102, and was mostly in ruins by the start of the Kamakura period.