Fourth Dimension Records is a British record label, specialising in international underground music. It was founded by Gary Levermore as an offshoot of his Third Mind label before being taken over by Richard Johnson (aka Richo) in 1984. The label became quite successful in the 1990s, releasing music by Simon Wickham-Smith & Richard Youngs, KK Null, The Gerogerigegege, Circle, Splintered (band), Thurston Moore, Hijokaidan (band), and Merzbow, side projects by members of Amp and Skullflower and myriad 7" and 10" singles by experimental artists from the UK, US, New Zealand, the Netherlands and Japan. Alongside the label, Johnson also ran a mail order service, stocking rare underground releases from around the world.