Stim

Stim may refer to:

• STIM, Swedish Performing Rights Society (Svenska Tonsättares Internationella Musikbyrå), which oversees collection and payment of music royalties in Sweden
• Stimulus (physiology), a detectable change in the internal or external environment
• Stimulation, the action of various agents (stimuli) on muscles, nerves, or a sensory end organ
• Stimming, repetitive self-stimulating behavior, often observed in people who have Asperger's syndrome or autism
• Stimulant, a drug or other substance that temporarily increases alertness and wakefulness
• Any of several fictional stimulant drugs
• Caffeine, a stimulant drug, by the trade name Stim