Takahashi Deishū

was a Japanese samurai, calligrapher, and author. His imina was , and he is also known to have used the pseudonyms and .

Biography Born in Edo, Japan, as the second son of the hatamoto . He succeeded to his mother's side and was adopted by .

The Yamaoka family, into which he was born, was well known for the of spearmanship, and he trained under his elder brother , who was regarded as a great master in the use of the spear. In 1855, Seizan died of illness at the age of 26, and Ono Tetsutarō, a student of his, married into the Yamaoka family. Taking the family name, Ono became Yamaoka Tesshū.

In 1856, Deishū became an instructor of spearmanship at the Kōbusho. Later, in 1862, he accompanied Hitotsubashi Yoshinobu to Edo.

In 1866, he was assigned to head the newly established commando unit. At the outbreak of the Boshin War in 1868, Deishū fought in the Battle of Toba–Fushimi. After the defeat of the Shogunal forces there, he returned to Edo where he attempted to rally for loyalty to Yoshinobu. On March 5 of that year, Deishū was part of the guard regiment that accompanied Yoshinobu's retreat from Edo Castle to the Kan'ei-ji in Ueno. On May 3, in the aftermath of the Fall of Edo, he remained alongside Yoshinobu during the latter's move to the Mito Domain.

After the conclusion of the war, Yoshinobu chose Deishū as his emissary to Saigō Takamori for the negotiation of the disposal of the Tokugawa family due to his resolute character. However, Deishū recommended that his brother-in-law, Yamaoka Tesshū, conduct the negotiations instead.

Later, when the Tokugawa family moved from Edo to Shizuoka, he moved with them and temporarily took stewardship of Tanaka Castle, a Tokugawa property. After the abolition of the han system, he resigned his post and settled into a secluded retirement in Tokyo. He spent the remainder of his life appraising calligraphy, paintings, and antiques.

He died at his home in 1903.