Steindor Jonsson is a Reykjavik, Iceland based DJ, concert promoter and occasional producer. He is a co-owner of Reykjavík club Volta, which opened in February 2012.

Steindor Jonsson has supported acts including Australian ensemble Cut Copy, Cocoon's Tim Green, Leftroom's Matt Tolfrey, Laura Jones and Gavin Herlihy, Crosstown Rebels' Francesca Lombardo and DFA artist Shit Robot, and remixed tracks by several Icelandic artists.