Threshold may refer to:
- Absolute threshold
- Difference threshold
- Action potential threshold, point of the membrane potential curve at which action potential is initiated
- Terminal threshold
- Threshold of paina sound pressure level
In psychophysics various sensory thresholds have been studied including:
- Auditory thresholds
- Critical flicker fusion threshold
- Odor detection threshold
- Olfactory thresholds
- Pain thresholds
- Visual thresholds
- Vibrotactile thresholds