Planing may refer to:

  • Planing (sailing) or hydroplaning, a method by which a hull skims over the surface of the water
  • Hydroplaning (tires), a loss of traction caused by a layer of water between the tires and the road surface
  • Using a plane (tool) to smooth a flat surface of a piece of wood
  • Operating a Planer (metalworking) to produce a flat surface
  • Harmonic planing (music), chords that move in parallel motion, thereby eliminating any feeling of harmonic progression
  • Scaling and root planing, the removal of dental plaque
  • Planing (shaping), material removal process