The 4th Ukrainian Front (Russian: Четвёртый Украинский фронт) was the name of two distinct Red Army strategic army groups that fought on the Eastern Front in World War II.

The front was first formed on 20 October 1943, by renaming the Southern Front and was involved in the Lower Dnieper Strategic Offensive Operation, two battles of Kiev and the Crimean Strategic Offensive Operation.

The front took part in the Carpathian Offensive simultaneously with the Battle of the Dukla Pass.

Afterwards, the front was involved in the battles in East-, North- and Central Slovakia, as well as in the Moravian-Ostrava Offensive Operation on the Polish-Moravian borders and finally in the Prague Offensive which was the final battle of World War II in Europe.

[1] On 25 August 1945, the front was disbanded and its elements incorporated into the Carpathian Military District.