Liander is a Dutch regional network operator, distributing electricity to 3,0 million customers and gas to 2,3 million customers in the provinces of Gelderland, Noord-Holland and large areas of Flevoland, Friesland and Zuid-Holland.

Liander is responsible for the maintenance, expansion and innovation of its grids. Liander also allows its customers to purchase energy from their supplier of choice.

Liander is part of Alliander.