Sykur (e. Sugar) is an electronic pop band from Iceland comprised of the members Kristján Eldjárn, Halldór Eldjárn, Stefán Finnbogason and Agnes Björt Andradóttir.

Originally formed in 2008, the band has released 3 albums. Their debut album, Frábært Eða Frábært, was a huge hit, mainly for their collaboration with BlazRoca on the song Viltu Dick?.

In 2019, the band made a comeback after 8 years of being dormant with the album JÁTAKK (following the release of Mesópótamía 8 years prior).