Eldkvarn is a Swedish rock band formed in Norrköping in 1971.

The group, whose best-known line-up comprises Plura Jonsson, Carla Jonsson and Tony Thorén, as well as other artists, are regarded as one of the best rock bands in Sweden, with a following in other Nordic countries as well.

The Jonsson brothers and Tony Thorén began playing together in Norrköping in 1971 under the name "Piska mig hårt".

The members eventually moved to Stockholm and the band was based around one of the many collectives of that time.

The album was not a great success however, and in the music movement, the introverted band with a strange name and not very political lyrics was often seen as a foreign bird.