Vladimir "Senjko" Copic (8 March 1891 – 19 April 1939) was a Croatian communist and leader of the Communist Party of Yugoslavia from April 1919 to August 1920.
During the Spanish Civil War, in the period from 1937 to mid-1938, he was the commander of the XV International Brigade.
Like General "Gal", he had been conscripted into the Austro-Hungarian army during World War I, and subsequently captured by the Russians.His brother, Milan Copic, was in the International Brigades' prison at Camp Lucász.