The 3rd Belorussian Front () (alternative spellings are 3rd Byelorussian Front and 3rd Belarusian Front) was a Front of the Red Army during the Second World War. The 3rd Belorussian Front was created on April 24, 1944 from forces previously assigned to the Western Front. Over 381 days in combat, the 3rd Belorussian Front suffered 166,838 killed, 9,292 missing, and 667,297 wounded, sick, and frostbitten personnel while advancing from the region some 50 kilometers southeast of Vitebsk in Russia to Königsberg in East Prussia. 3rd Belorussian Front was formally disbanded on August 15, 1945.