Willamette's Greek social organizations have shared and contributed to the University's rich and proud history. Growing out of social clubs and societies, which developed as early as the 1850's, local fraternities and sororities were officially formed at Willamette in the 1920's. Following World War II, then-President G. Herbert Smith invited national fraternities and sororities to affiliate with the local Greek organizations at Willamette. Currently, Willamette hosts three nationally affiliated sororities (Alpha Chi Omega, Delta Gamma, and Pi Beta Phi), and four nationally affiliated fraternities (Beta Theta Pi, Phi Delta Theta, Sigma Alpha Epsilon, and Sigma Chi). Approximately 25% of Willamette students are affiliated with one of these seven organizations.

Willamette's Fraternities		Willamette's Sororities
Beta Theta Pi Fraternity Established 1947 32 residents General Headquarters Oxford, Ohio		Alpha Chi Omega Sorority Established 1967 48 residents Alpha Chi Omega Headquarters Indianapolis, Indiana
Phi Delta Theta Fraternity Established 1947 32 residents General Headquarters Oxford, Ohio		Delta Gamma Sorority Established 1967 48 residents Delta Gamma Executive Offices Columbus, Ohio
Sigma Alpha Epsilon Fraternity Established 1949 32 residents International Headquarters Evanston, Illinois		Pi Beta Phi Sorority Established 1947 32 residents Pi Beta Phi Central Office St. Louis, Missouri
Sigma Chi Fraternity Established 1947 32 residents International Headquarters Evanston, Illinois