Biofield may refer to:

• Energy (esotericism), biopsychospiritual energy
  • Aura (paranormal)
  • Prana
  • Qi
  • Vital energy
• Energy medicine, alternative medicine
  • Energy field disturbance
  • Ionized jewelry
  • Magnet therapy
  • Negative air ionization therapy
  • Qigong
  • Radionics
  • Reiki

• Electrophysiology, scientific study of electrical properties of cells and tissues
  • Electroreception, sensory of electric fields by organisms
  • Magnetoception, sensory of magnetic fields by organisms
  • Bioelectromagnetics, scientific study of electric biofields of organisms
• Medical imaging, scientific magnetic or electrical biofield imaging
  • Magnetoencephalography, brain imaging by magnetic field sensing
  • Electroencephalography, brain imaging by electric field sensing
  • Magnetocardiography, heart imaging by sensing its magnetic field
  • Magnetogastrography, stomach imaging by sensing magnetic fields
  • Magnetomyography, muscle imaging by sensing magnetic fields, produced by electrical impulses

• BioFields, a Mexican algal fuel producer