Emil Doepler (29 October 1855, in Munich – 21 December 1922, in Berlin) was a German illustrator, graphic artist, and heraldist.
He was born to Carl Emil Doepler, an illustrator and designer, who was head of the costume department at the Bayreuth Festival.
In 1888, he designed the coat-of-arms for the Börsenverein des Deutschen Buchhandels, featuring Habent sua fata libelli (books have their destiny), the motto of the German publishing industry.
Later, one of his students, Elli Hirsch [de], combined the lettering with a three-point crown, to create the company's logo.
In November 1919, Friedrich Ebert, President of the Weimar Republic, declared one of Doepler's designs to be Germany's official coat-of-arms.