Coignet
Coignet is the family name of the following people:
- Edmond Coignet (1856–1915), French civil engineer, son of François Coignet
- François Coignet (1814–1888), French construction technician and architect
- Jean-Roch Coignet (1776–1865), French soldier, chronicler of the Napoleonic Wars
- Jules Coignet (1798–1860), French landscape painter
- Michel Coignet (1549–1623), Belgian mathematician, instrument maker and engineer