Tillie Walden is an American cartoonist and illustrator.
Born in 1996 in San Diego, California, Walden graduated from the Center for Cartoon Studies in Vermont, where she is currently a professor.
Walden started publishing short comics when she was just a teenager. Her first long-form graphic novel The End of Summer was published by the British publisher Avery Hill in 2015. Her second book I Love This Part came out only a few months later, winning the 2016 Ignatz Award for promising new talent. Later Walden received the 2018 Eisner Award for Best Reality-Based Work for her memoir Spinning (2017). Among her other works are A City Inside (2016), On a Sunbeam (2018), Are You Listening? (2020), Alone in Space (2021) and the series Clementine.