Walter Rudolf Leistikow (25 October 1865 – 24 July 1908) was a German artist, painter, etcher and writer from Bromberg (Bydgoszcz) in the Prussian Province of Posen .
His mother was among the first to notice his artistic talent and taught him the basic principles of drawing and painting. He left home at the age of 18 to study at the Royal Academy of Arts in Berlin but, after only six months, he was dismissed for 'lack of talent' by Anton von Werner. He then became a private pupil of Hermann Eschke (1823–1900) and later (1885–1887) took private lessons from the Norwegian landscape painter Hans Fredrik Gude (1825–1902). He also befriended Edvard Munch when he visited Berlin.
In 1890, Leistikow joined Berlin's Art and Craft School as a professor. He was a founder member of 'The XI', the Berlin art group established in 1892. In 1898, he became one of the founders of the Berlin Secession Movement. Around 1902, he started working for the German chocolate company Stollwerck in Cologne where he created designs for their albums, most notably for the series on 'German landscapes'.