Little Nemo is a fictional character created by American cartoonist Winsor McCay. He originated in an early comic strip by McCay, Dream of the Rarebit Fiend, before receiving his own spin-off series, Little Nemo in Slumberland. The full-page weekly strip depicted Nemo having fantastic dreams that were interrupted by his awakening in the final panel. The strip is considered McCay's masterpiece for its experiments with the form of the comics page, its use of color and perspective, its timing and pacing, the size and shape of its panels, and its architectural and other details.

Zenas Winsor McCay was an American cartoonist and animator. He is best known for the comic strip Little Nemo and the animated film Gertie the Dinosaur (1914). For contractual reasons, he worked under the pen name Silas on the comic strip Dream of the Rarebit Fiend.