Gwennap is a rural parish in central Cornwall, England, lying a few miles east of Redruth and Camborne. The area is a patchwork of rolling farmland and small settlements dotted with the ruined engine houses, spoil heaps and shafts left by the 18th–19th century metal mining boom, and it forms part of the Cornwall and West Devon Mining Landscape World Heritage area.
Historically the parish was one of the richest copper-producing districts and was famously called the "richest square mile" for its output; that mining past has shaped local society and identity. Cultural highlights include Gwennap Pit, the amphitheatre-like hollow where John Wesley preached outdoors, and today the parish balances agriculture, heritage tourism and commuter residents, with the dramatic industrial archaeology popular with walkers and history enthusiasts.