Action Committee for Defending the Diaoyu Islands

Action Committee for Defending the Diaoyu Islands (Chinese: 保釣行動委員會) is a Hong Kong-based activist organisation that asserts Chinese sovereignty over the Diaoyu Islands, called Senkaku Islands in Japan, in the Senkaku Islands dispute. The territorial right to the islands is disputed between the China, the Taiwan, and Japan, who currently controls them. The group regularly sends expeditions to the islands and would make landing on them to assert Chinese sovereignty.

In addition to its goals regarding the Diaoyu Islands, the group has also called for the Japanese government to apologise for its wartime atrocities and to stop distorting the history of World War II.