Infrared is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum.

Infrared may also refer to:

• Infrared spectroscopy, a subset of spectroscopy
• Infrared homing device, a type of infrared device
• Consumer infrared, as used in wireless remote controls, keyboards, and other devices
• Infrared (record label), a UK-based record label
• "Infra-Red" (Placebo song)
• Infra-Red (Three Days Grace song)
• "Infrared" (Pusha T song)
• "Infrared" (Vybz Kartel & Masicka song)

• Infrared Data Association (IrDA)