Ghosts is an ongoing instrumental album release series by Nine Inch Nails. So far, six installments have been released in two waves:
- Ghosts I-IV (2008), a four-part album consisting of 36 instrumental tracks.
- Ghosts V-VI, a simultaneous release of two albums:
So far, all Ghosts releases have been made available for free digitally at their initial release, and are only released by NIN as an off-label release.