The Morgan Report was an 1894 report concluding an official U.S. Congressional investigation into the events surrounding the overthrow of the Hawaiian Kingdom, including the alleged role of U.S. military troops in the overthrow of Queen Liliʻuokalani. Along with the Blount Report submitted in 1893, it is one of the main source documents compiling the testimony of witnesses and participants in the overthrow of the Hawaiian Kingdom in January 1893. The Morgan Report was the final result of an official U.S. Congressional investigation into the overthrow, conducted by the United States Senate Committee on Foreign Relations, whose chairman was Senator John Tyler Morgan, Democrat of Alabama.

The overthrow of the Hawaiian Kingdom was a coup d'état against Queen Liliʻuokalani, which took place on January 17, 1893, on the island of Oʻahu and led by the Committee of Safety, composed of seven foreign residents and six Hawaiian Kingdom subjects of American descent in Honolulu. The Committee prevailed upon American minister John L. Stevens to call in the U.S. Marines to protect the national interest of the United States of America. The insurgents established the Republic of Hawaii, but their ultimate goal was the annexation of the islands to the United States, which occurred in 1898.