Tendō Domain (天童藩 Tendō-han?) was a feudal domain in Edo period Japan, located in Dewa Province (modern-day Yamagata Prefecture), Japan. It was centered in what is now the city of Tendō, Yamagata. Tendō was ruled by the tozama Oda clan , direct descendants of the famed Oda Nobunaga, throughout its history. Although styled with the honorific of “castle”, the clan residence was in fact a jin'ya, or fortified house.
Tendō Castle was built in 1375 by Mogami Yorinao and entrusted to the Tendō clan. However, the Tendō sided against Mogami Yoshimitsu and were defeated over two generations, with Tendō Castle falling into ruins in 1584. During most of the Edo period, the area was tenryō territory under direct control of the Tokugawa shogunate.
In 1617, Oda Nobuyoshi, the fourth son of Oda Nobukatsu (who was the second son of Oda Nobunaga) was awarded the 20,000 koku Obata Domain in Kōzuke province, where the clan resided for seven generations to 1767. Due to the Meiwa Incident, the clan was transferred to Takabatake Domain, in Dewa Province. However, the Temmei Great Famine of 1782-1783 hit the region very hard, and reduced many of the peasants and even samurai of the domain to starvation. The domain went bankrupt, and the Oda were shifted to the smaller domain of Tendō in 1830.