The Orangi Pilot Project (; abbreviated OPP) collectively designates three Pakistani Non-governmental organisations working together, having emerged from a socially innovative project carried out in 1980s in the squatter areas of Orangi, Karachi, Pakistan. It was initiated by Akhtar Hameed Khan, a North Indian muhajir from Uttar Pradesh implemented by Perween Rahman, a Bihari from Bangladesh and involved the local residents solving their own sanitation problems. Innovative methods were used to provide adequate low cost sanitation, health, housing and microfinance facilities.