Dr. Seuss' Fix-Up the Mix-Up Puzzler is a sliding puzzle video game developed by Coleco.

The game features six Dr. Seuss characters: the Cat in the Hat, the Grinch, a Star-Bellied Sneetch, the Doorman, and the Woset and Clark.

Designed for children ages 4–10, the objective of the game is to reassemble scrambled pictures, each of which is composed of three characters.

In higher levels of play, there are more puzzle pieces, some of which are upside down, and characters must be assembled in their original left-to-right order.

The manual for Dr. Seuss' Fix-Up the Mix-Up Puzzler claims that the game promotes "problem-solving strategies, logic, pattern recognition, memory and a variety of other early learning skills."