"If I Had a Heart" is a song performed, written, and produced by Swedish recording artist Fever Ray. It was released as the lead single from their self-titled debut album, Fever Ray (2009), marking Ray's debut single as a solo artist, after their work with their previous band, The Knife. The track was first released digitally in Sweden and across Europe on 15 December 2008 by Rabid Records, followed by a digital EP release on 26 January 2009. It was later released on CD, 7", and 12" formats in early 2009. The single's B-side premiered three days prior to the single release on Stereogum and is a remix of the track done by English experimental duo Fuck Buttons, the duo's maiden work as remixers.

Karin Elisabeth Dreijer is a Swedish singer-songwriter and record producer. Dreijer was one half of the electronic music duo the Knife, formed with their brother Olof Dreijer. Dreijer released their debut solo album under the alias Fever Ray in January 2009. Their second studio album, Plunge, under the same alias, was released in October 2017.