Marquis Asano Nagakoto (?? ??, August 28, 1842 – February 1, 1937) was a daimyo of Hiroshima Domain for a short time after the Meiji Restoration.
For the rest of the Meiji period, he was a politician and diplomat, and was one of the last surviving Japanese daimyo (Hayashi Tadataka and Wakebe Mitsunori outlived him).