Martinus Spyridon Johannes Lodewijk (born 30 April 1939)[1][2] is a Dutch comics writer and cartoonist, and advertising adviser.

In 1959, his first cartoon was published in the newspaper Het Parool, after which he specialized in drawing for commercial advertising.

From 2004 onward, Lodewijk succeeded Willy Vandersteen and Karel Biddeloo as writer for De Rode Ridder, with drawings by Claus Scholz.

Lodewijk worked on the third open source movie by the Blender Foundation, Sintel, released in 2010.

In 1973, Martin Lodewijk and his brother Tim participated in the knowledge quiz show Twee voor Twaalf.