Look up bret in Wiktionary, the free dictionary.
Bret or BRET may refer to:
- Bret (given name), including a list of people and fictional characters with the given name
- Bret (surname), including a list of people with the surname
- List of storms named Bret
- Background radiation equivalent time, a unit of measurement of ionizing radiation dosage
- Bioluminescence resonance energy transfer, a development of Förster resonance energy transfer
