The Congress of Oppressed Nationalities of the Austro-Hungarian Empire was held towards the end of the World War I in Rome, Kingdom of Italy, between 8 and 10 April 1918.

[2] The decision to host the event was made after prime ministers of Italy Vittorio Emanuele Orlando and Nikola Pašić of the Kingdom of Serbia became concerned with earlier statement of David Lloyd George that dissolution of the Austria-Hungary is not one of the war aims of his alliance and decided to prioritise self-determination before future border demarcation on the Adriatic Sea.

[4] The event rejected Austrophilist proposals on continued existence of the monarchy as a guarantor against violent and exclusive nationalism in the region and instead framed the war as a conflict between democracy and autocracy.

[7] Participant agreed to lay aside any dispute among themselves which would help Central Powers war efforts and which may negatively affect Allied public opinion.

[8] Important precondition for the Italian agreement on hosting the event was reached during the meetings held on 14 and 18 December 1917 at the home of Wickham Steed, where the Yugoslav Committee agreed in principle to accept the subsequent Torre-Trumbić agreement (7 March 1918) on principles of border demarcation between Italy and future Yugoslav state.