Nate Diana "Indy" Stevenson, known professionally as ND Stevenson, is an American cartoonist and animation producer. He is the creator, showrunner, and executive producer of the animated television series She-Ra and the Princesses of Power, which ran from 2018 to 2020. He is also known for the science fantasy graphic novel Nimona, as co-writer of the comic series Lumberjanes, and The Fire Never Goes Out, his autobiographical collection.

Stevenson's work has won multiple Eisner Awards as well as a Daytime Emmy Award and a GLAAD Media Award. Stevenson is non-binary and transmasculine and has written about being transgender in his webcomic I'm Fine I'm Fine Just Understand.