Jūlijs Voldemārs Feders was a Latvian painter.

Feders was born on June 19, 1838 in the family of Janis Feders, a horse-rider in Koknese. Studied at the Riga Dome School and Bergman’s Private School, in 1856 joined the St. Petersburg Academy of Arts, where he specialized in landscapes in the workshop of Socrates Vorobjov.

In 1873, Petersburg Academy of Arts awarded Feder to adegree in Art Class II. In 1874, Feders won the silver medal for London’s exhibition “Forest after the Storm” and became a member of the London Academy.