Wilhelm Junker (Russian: Василий Васильевич Юнкер; 6 April 1840 – 13 February 1892) was a Russian explorer of Africa. Dr. Junker was of German descent. Born in Moscow, he studied medicine at Dorpat (now called University of Tartu), Göttingen, Berlin and Prague, but did not practise for long. After a series of short journeys to Iceland (1869), Western Africa (1873), Tunis (1874) and Lower Egypt (1875), he remained almost continuously in eastern Equatorial Africa from 1875 to 1886, making first Khartoum and afterwards Lado the base of his expeditions.