Shmoo is a cartoon character created by Al Capp in the strip Li'l Abner.
Shmoo or Schmoo may refer to:
- Shmoos, nickname of the Cosmic Ray Detection Units of CHICOS (California High School Cosmic Ray Observatory)
- Shmoo plot, an electrical engineering graphical display of the response of a component or system
- Shmoo (yeast), projection from yeast in response to mating pheromones
- Shmoo, a bird skin, typically as specimens for bird collections