Pigeonhole may refer to:
- Pigeonholes, nesting spaces formed in a dovecote (also spelt dovecot or doocot)
- Pigeonhole, one of the boxes in a pigeon coop
- One compartment in a Pigeon-hole messagebox
- Pigeonholing, a processes that attempts to classify disparate entities into a small number of categories
- Pigeonhole principle, a mathematical principle
- Pigeonhole sort, a sorting algorithm
- Pigeon-hole messagebox, a communication method
- Pigeonhole People, a Northern Territory indigenous (Australian Aboriginal) people
- Pigeonhole (album), record album by the band New Fast Automatic Daffodils
- Pigeon Hole (band), a Canadian hip hop duo.