Liérganes is a municipality and locality in the autonomous community of Cantabria, in northern Spain. It is bordered by Medio Cudeyo to the north, Riotuerto to the east, Miera to the south, and Penagos to the west. The village lies along the river Miera, which flows through it and supplies the local spas.
The town has a rail link connecting it to Santander, the regional capital. According to the 2007 census, Liérganes had a population of 2,391 inhabitants. It has been named one of the most beautiful villages in Spain.