Jaeger-LeCoultre (French pronunciation: ​[[Help:IPA for French|ʒe'ʒɛʁ.lə'kultʁ]]) is a Swiss luxury watch and clock manufacturer based in Le Sentier, Switzerland, that dates back to the first half of the nineteenth century, founded by Antoine LeCoultre in 1833.

The brand has hundreds of inventions and over a thousand calibres (movements) to its name, including the world’s smallest calibre, one of the world’s most complicated wristwatches and a timepiece of near-perpetual movement. The company has been a fully owned subsidiary of the Swiss luxury group Richemont since 2000.