Larochette (French pronunciation: [laʁɔʃɛt]; Luxembourgish: Fiels, German: Fels) is a commune and town in central Luxembourg, in the canton of Mersch.

Meysembourg Castle, located some 2 kilometres (1+1⁄4 mi) south-west of Larochette, has a history dating back to the 12th century.

It was specialised in cloth mills on the river White Ernz from the end of the 18th century until the 1930s with some factories being active until the 1980s.

[5][6] In the Rue Scheerbach were several textile factories that are now residential buildings, one of the industrial chimneys has been restored.

[10][11] Larochette has the highest proportion of Portuguese-born inhabitants of any commune in Luxembourg, at 31.1% as of the 2021 census.