FM Belfast is an electro/electronica band from Reykjavík, Iceland. Its members include Lóa Hlín Hjálmtýsdóttir, Árni Rúnar Hlöðversson, Árni Vilhjálmsson and Örvar Þóreyjarson Smárason.

FM Belfast formed in late 2005 as a duo with Árni Rúnar Hlöðversson (Plúseinn) and Lóa Hlín Hjálmtýsdóttir. The band was a studio project for some time until the Iceland Airwaves festival 2006 when the band expanded into a full-on live act. The members now vary from 3 to 8 depending on who can make it. The core of the band is made up of Árni Rúnar Hlöðversson (Plúseinn, Hairdoctor, Motion Boys), Árni Vilhjálmsson (Motherfuckers in the house) and Lóa Hlín Hjálmtýsdóttir. When the stars are aligned correctly the band consists of Örvar Þóreyjarson Smárason (múm, Borko, Skakkamanage), Sveinbjorn Hermann Pálsson (Terrordisco) , Björn Kristjánsson (Borko, Skakkamanage), Birgitta Birgisdóttir, Eiríkur Orri (múm, Kira Kira, Benni Hemm Hemm)

The band began in 2005 with just Lóa and Árni Rúnar Hlöðversson but didn't really get going properly until Árni Vilhjálmsson and Örvar Þóreyjarson Smárason joined. In 2006 the group progressed from being a studio project to a full live act, performing at the Iceland Airwaves festival.

The bands live show often features many percussionists, among them are Sveinbjörn Pálsson, Björn Kristjánsson (Borko), Halli Civelek, Svanhvít Tryggvadóttir, Unnsteinn Manuel Stefánsson (Retro Stefson) and Þórður jörundsson (Retro Stefson).

Their first album was recorded in New York and Iceland, with the group recording, mixing, and mastering it, and creating the album artwork themselves.