Chi Eta Phi Sorority, Inc. is a national sorority of registered professional nurses and nursing students. Ms. Aliene C. Ewell organized the Sorority on October 16, 1932 with the assistance of 11 other courageous registered nurses. The charter chapter, Alpha, was organized at Freedman's Hospital in Washington D.C. for two specific purposes: elevating the plane of nursing and increasing interest in the field of nursing.

There are over 8,000 registered nurses and nursing students in graduate and undergraduate (Beta) chapters grouped into five regions according to geographic areas. The chapters are located throughout the United States, District of Columbia, St. Thomas U.S. Virgin Island and Liberia West Africa.

Guided by the motto "Service for Humanity", the Sorority has Programs focusing on health promotion/disease prevention, leadership development, mentoring, recruitment and retention and scholarships. These programs fulfill the mission of the Sorority.