Ogasawara Nagamichi (小笠原 長行, June 29, 1822[1] – January 25, 1891) was a Japanese samurai and official in the Bakumatsu period Tokugawa Shogunate.

An infant at the time of his father’s death, he was bypassed in the succession by Ogasawara Nagayasu, originally the son of Sakai Tadaari of Shonai Domain.

[2] During these periods, he was primarily involved with foreign affairs, and was one of the senior Japanese officials during negotiations with Great Britain over reparations following the Namamugi Incident.

In 1868, with the start of the Boshin War, Karatsu Domain remained strongly in support of the Tokugawa bakufu.

His son, Admiral Ogasawara Naganari, became a viscount under the new kazoku peerage system; however, Nagamichi was not awarded a title, perhaps due to his involvement with the pro-Tokugawa side in the Boshin War.