Mīrzā Ḥasan Rushdīyeh (1860(?)–1944) was a lower-ranking Azeri-Iranian cleric, constitutionalist, and educational reformer who was a major pioneer of new (jadīd) primary schools in Iran. This article shows that in 1889 Rushdīyeh, through training he had received in Beirut, introduced new schools into Iran based on changed pedagogy and modern disciplines. It argues that although the schools drew fierce opposition from maktab custodians and certain Qajar courtiers, they gradually increased in authority until the Reza Shah state appropriated them, with some modifications, as normative schooling called the dabestān. In English and Persian scholarship, we lack a substantial history of Rushdīyeh’s new schools. Drawing on previously unexamined sources, including his Iran and Ottoman diaries, this article examines Rushdīyeh’s educational work in the broader intellectual and political history of the period.