'Aniseed' was a British unrealised plan for an amphibious raid by the Special Boat Squadron of Brigadier G. M. O. Davy’s Land Forces Adriatic command on the port town of Lussinpiccolo (Mali Losinj) on the island of Lussin (Losinj) off the Croat coast of German-occupied northern Yugoslavia (February 1945).

The operation was designed to provide a forward base for light naval forces to operate in the northern part of the Adriatic Sea for the protection on Allied convoys heading for Ancona on the north-eastern coast of Italy. The plan foundered in the face of strong opposition by Marshal Josip Broz Tito’s Yugoslav partisan forces, whose 4^th Partisan Army took Lussin island on 22 April 1945 with the aid of British air support.