This research examines the Islam endowments (waqf) in the city of Nazareth during of the Ottoman era 1810 – 1918. It shows the types of real estate that were endowed, such as lands, houses, shops, and khans, as well as money and the beneficiaries of those endowments (mosques, schools, in addition to the poor in Nazareth. This research also examines the names of the endowers who were merchants and religious leaders, khatib, imam, mufti and qadi. The variety of transaction with endowments are clarified such as vacancies, exchanges, monopolies and interests, their conditions, and the different ways of collection income from those endowments such as tax forming and renting, and the people responsible for collection income such as merchants, and its effects on the different social classes in Nazareth.