The Akihasan Hongū Akiha Jinja (秋葉山本宮秋葉神社) is a Shinto shrine in Tenryū-ku, Hamamatsu (the former town of Haruno in Shizuoka Prefecture, Japan).

During the Edo period, this kami was popularly called the Akiha Gongen (秋葉権現) and was identified with Kannon Bosatsu under the Shinbutsu shūgō system of combined Buddhism and Shinto.

Tokugawa Tsunayoshi in particular favored its blend of Shinto, Buddhism and Shugendō, and promoted the spread of the Akiha cult throughout the country to provide protection against fires.

However, in 1685, the government banned the traditional ceremony of carrying the shrine's mikoshi along the Tōkaidō Mount Akiha towards Edo and Kyoto, for fear that the riotous procession would disturb public order.

The shrine has a small museum preserving remaining artifacts, including a number of swords presented as offerings by Imagawa Nakaaki, Takeda Shingen, Toyotomi Hideyoshi and Katō Kiyomasa.