Peercast may refer to:

• Peercasting, multicasting a data stream using peer-to-peer technology

• Synaphobranchus pinnatus var. brevidorsalis
• Synapomorphic character state
• Synapse (comics)
• Synapse (film)
• Synapse Gaming
• Synapse Group
• Synapse Group, Inc.
• Synapse: The Electronic Music Magazine
• Synapsis (genus)
• Synapsis (plant)
• Synapson
• Synapta maculata
• Synaptic acclimatisation
• Synaptic excitability
• Synaptic fatigue
• Synaptic homeostasis
• Synaptic membrane
• Synaptic Pharmacology
• Synaptic scaling
• Synaptic stability
• Synaptic transistor
• Synaptic update rate
• Synaptic vesicle glycoprotein 2A
• Synaptic vesicle glycoprotein 2B
• Synaptic vesicle protein 2A