Breguet may refer to:
- Breguet (watch), watch manufacturer
- Breguet Aviation, a defunct French aircraft manufacturer; was formally known as "Société Anonyme des Ateliers d'Aviation Louis Breguet"
- Breguet School, now known as École supérieure d'ingénieurs en électronique et électrotechnique (ESIEE)
- Abraham-Louis Breguet (1747–1823), watchmaker
- Louis Charles Breguet (1880–1955), airplane designer
- Louis-François-Clement Breguet (1804–1883), physicist, watchmaker, electrical and telegraph work