California State University-San Marcos

Gamma Phi Beta is thrilled to be a part of the vibrant and successful Greek community at California State University-San Marcos! 


Gamma Phi Beta is one of the 10 oldest women’s organizations in North America. We were founded on November 11, 1874, at Syracuse University by four courageous, young women. In Gamma Phi Beta, you develop meaningful, lasting friendships with other women who offer encouragement and inspiration and will always be by your side. In fact, the term “sorority” – meaning sisterhood – was coined for Gamma Phi Beta. With more than 224,000 initiated members, discover why our Sorority is truly a lifetime experience. 

Our Symbols

Our Core Values

Our Philanthropic Focus

Our Philanthropic Partner

Contact Us

Instagram: @CSUSMGammaPhi

Twitter: @CSUSMGammaPhi

Facebook: @CSUSMGammaPhi