is a Buddhist temple in the Kiyotaki neighborhood of the city of Maibara, Shiga Prefecture Japan. It belongs to the Tendai school of Japanese Buddhism and its main image is a hibutsu statue of Sho-Kannon Bosatsu. The temple is noted as the bodaiji of the Kyà Âgoku clan, a prominent Sengoku and Edo period daimyà  clan. The clan cemetery was designated a National Historic Site in 1936.
Tokugen-in is also known as . It was established in 1283 by the founder of the Kyà Âgoku clan, Kyà Âgoku Ujinobu, who was shugo of à Âmi Province. The Kyà Âgoku clan descended from the Uda Genji through the Sasaki clan. Their name derives from the Kyà Âgoku quarter of Kyoto during the Heian period. The Kyà Âgoku served as shugo of à Âmi, Hida, Izumo and Oki Provinces at various times in the period before the à Ânin War.
In 1672, the 20th hereditary chieftain, Kyà Âgoku Taketoyo, the daimyà  of Marugame Domain in Sanuki Province, successful petitioned the Tokugawa shogunate for permission to exchange two villages from his holdings in Harima Province with two villages in à Âmi Province surrounding this temple, which he then reconstructed. The temple's name was formally changed to "Tokugen-in" after the posthumous name of his father, Kyà Âgoku Takakazu. A three-story Pagoda was constructed, and he gathered the tombstones of his ancestors from various locations and organized them into one place.
This three-storied pagoda was designated as a Tangible Cultural Property of Shiga Prefecture in 1973. The tombs consist of two rows of hà Âkyà Âintà  arranged in two rows. That of Kyà Âgoku Ujinobu has a height of 278 cm. The upper row consists of eighteen tombs from the first to the 18th generation. The lower row consists of 14 tombs of the 15th generation onwards, with the sizes of the monuments varying depending on the rise and fall in the fortunes of the clan, and form a valuable resource in the study of how the hà Âkyà Âintà  monuments evolved from the Kamakura period through the end of the Edo period.
The temple has a Japanese garden in a typical style of the early Edo period, and is a Shiga Prefectural Place of Scenic Beauty.
Tokugen-in is a 30-minute walk from the JR Central Kashiwabara Station or ten minutes by car from à Âmi-Nagaoka Station.