The French protectorate of Laos (French: Protectorat français du Laos) was a French protectorate in Southeast Asia of what is today Laos between 1893 and 1953—with a brief interregnum as a Japanese puppet state in 1945—which constituted part of French Indochina. It was established over the Siamese vassal, the Kingdom of Luang Phrabang, following the Franco-Siamese crisis of 1893. It was integrated into French Indochina and in the following years further Siamese vassals, the Principality of Phuan and Kingdom of Champasak, were annexed into it in 1899 and 1904, respectively.
The protectorate of Luang Prabang was nominally under the rule of its King, but actual power lay with a local French Governor-General, who in turn reported to the Governor-General of French Indochina.