Gustaf Werner Holmberg (1 November 1830 – 24 September 1860) was a Finnish landscape painter.

His mother passed away from a lung disease and Olof raised his six surviving children with the help of his sisters.

Werner was interested in painting from a young age, taking private lessons from Pehr Adolf Kruskopf [fi] and later Magnus von Wright.

[3] By this point Gude recognized Holmberg as fully trained and ended his tutorship, although they still kept close contact.

[1][4] Gude also spent some time with Holmberg in Norway, painting watercolor sketches together near Christiania.

[2] In the spring they had a daughter, Betzy (who later became a composer) but the couple also ran into some financial troubles as they had a harder time selling paintings.