Cecilia Fire Thunder (born Cecilia Apple; October 24, 1946) is a nurse, community health planner and tribal leader of the Oglala Sioux. On November 2, 2004, she was the first woman elected as president of the Tribe. She served until being impeached on June 29, 2006, several months short of the two-year term. The major controversy was over her effort to build a Planned Parenthood clinic on the reservation after the South Dakota legislature banned most abortions throughout the state. The tribal council impeached her for proceeding without gaining their consensus.