'Winterende' was the German operation undertaken as the later-ending counterpart of 'Frühlingsanfang' against the Yugoslav forces of Marshal Josip Broz Tito in the Slovenia region within German-occupied Yugoslavia (19 March/6 April 1945).

The operation was designed to clear the central part of the Slovene coastal region and, starting at the same time as 'Frühlingsanfang', the Axis forces initially contented themselves to checking the main part of the Yugoslav IX Corps in the Trnovska forest. In this part of the offensive some 23,000 Axis troops were committed, and at the time of the operation’s end on 6 April the IX Corps had only some 1,500 combat-capable men left. This was the last Axis offensive attempted in occupied Yugoslavia.