The Himeogawa Kofun (姫小川古墳) is a Kofun period burial mound located in the Himeogawa neighborhood of the city of Anjō, Aichi in the Tōkai region of Japan.

[1] The Himeogawa Kofun is located on the eastern edge of the Hekikai Plateau facing the alluvial lowland of the west bank of the Yahagi River at an elevation of 12.5 meters, but protruding only four meters above the surrounding rice paddies.

This circular portion is surmounted with an Asama Jinja Shinto shrine.

[2] As a result of an archaeological excavation in 2016, it was found that the anterior portion was closer to trapezoidal rather than rectangular as originally assumed, with changes to the terrain caused by landfill in the Edo period and after World War II.

[2] The tumulus is located about 15 minutes on foot from Sakurai Station on the Meitetsu Nishio Line.