Stool may refer to:
- Stool (seat), a type of seat without back support or arm rests
- Bar stool
- Footstool
- Stool, feces
- Human feces, more commonly called "stool"
- Stool test, the collection and analysis of fecal matter to diagnose the presence or absence of a medical condition
- Stool, a living stump of a tree, capable of producing sprouts or cuttings
- Stool (hieroglyph), an alphabetic uniliteral sign of ancient Egypt
See also
- Golden Stool, throne of kings of the Ashanti people
- Groom of the Stool, the most intimate of an English monarch's courtiers
- Informant, sometimes called a "stool pigeon" or "stoolie"