Passthrough (or pass-through) may refer to:

• Passthrough (electronics), a device used to pass an unmodified signal
  • Analog passthrough
  • Pass through device (automotive)
• Passthrough (opening), an opening between the kitchen and the dining room
• Pass-through (economics), offsetting a change in costs by changing prices
  • Exchange-rate pass-through
• Pass-through entity, a term in the US tax law
• Pass-through certificate, a financial instrument accessing the related Pass-through security