Akutagawayama Castle (芥川山城, Akutagawayama-jō) was a Sengoku period mountain-top castle in Takatsuki, Osaka Prefecture, Japan.

[1][2] Akutagawayama Castle was built by Hosokawa Takakuni but was later taken control of by the Miyoshi clan.

[3][4] It was the original base of power for the Miyoshi clan before Miyoshi Nagayoshi moved to Iimoriyama Castle.

[1] The castle is now only ruins, with some stone walls, moats and Dobashibridges.

[5] The castle ruins can be reached by bus from the Takatsuki Station.