In the early twentieth century, Iranian Baha'is were at the forefront of efforts to promote modern schooling for girls in Iran. Using previously untapped published primary sources and archival records, this article examines the history of the Baha'i schools for girls in the context of modern schooling of Iranian girls and assesses their contribution to female education in Iran. This contribution was significant and all the more remarkable considering the Iranian Baha'is’ numbers and resources and the restrictions under which they operated. Most notably, in the spring of 1933, less than two years before the forced closure of Baha'i schools by the Pahlavi state, 4 percent of all females in Iran's accredited schools were enrolled in Baha'i schools. The Baha'i community's most prestigious school, Tarbīyat-i banāt in Tehran, was by this time Iran's largest girls’ school. Outside Tehran, in some localities, the only girls’ schools were run by Baha'is, and in others a significant portion of all female pupils were enrolled in Baha'i schools.