Count Ogasawara Tadanobu (小笠原 忠忱, March 8, 1862 – February 6, 1897) was a Japanese samurai daimyō of the late Edo period.

[3] Tadanobu's branch of the clan were daimyō at Kokura Domain (150,000 koku)[4] in Buzen Province.

[5] During Tadanobu's tenure as clan head, the Kokura domain took part in the shogunate's Chōshū Expeditions, and also destroyed Kokura Castle in 1866 during its retreat to Kawara.

For his deployment of troops on the Imperial side during the Boshin War of 1868, Tadanobu received a personal stipend of 5,000 koku from the court.

[6] In the Meiji era, Tadanobu spent a few years studying in Britain, returning in 1878.