Jikō-in (慈光院) is a Buddhist temple located in the Koizumi-chō neighborhood of the city of Yamatokōriyama, Nara Prefecture, Japan.

[1] The temple was founded by Katagiri Sadamasa, second daimyō of Koizumi Domain, who was better known under the name "Sekishu" as the founder of Sekishu-ryu school of the Japanese tea ceremony.

He was the nephew of Katagiri Katsumoto and tea instructor to the fourth Shogun, Tokugawa Ietsuna, so his style became popular among the feudal ruling class of Japan at the time.

Jikō-in was constructed in 1663 as the bodaiji memorial temple for his father, Katagiri Sadataka, and the 185th abbot of Daitoku-ji was its founding priest.

The temple is located 1.4 kilometers northwest, or approximately 20-minutes on foot, from Yamato-Koizumi Station on the JR West Kansai Main Line.