Ernest Comstock Jenner (March 11, 1875 – June 26, 1946) was a Seattle newspaper artist and engraver. He was part of the Seattle Cartoonists' Club which produced illustrations and caricatures of Seattle's rich, famous and powerful men. He was one of eight artists that did artwork in the 1906 book Cartoons and Caricatures of Seattle Citizens. Four of the men, Jenner, Calver, Brotze and Hager all took on a similar project in 1911, as members of the Seattle Cartoonists' Club in a book called The Cartoon; A Reference Book of Seattle's Successful Men.