- Interfraternity Council
- Multicultural Greek Council
- National Pan-Hellenic Council
- Panhellenic Council
Phi Sigma Nu Fraternity, Inc.
Delta Chapter, Oklahoma State University
Multicultural Greek Council
Phi Sigma Nu Fraternity, Inc. was established on February 3, 1997 at University of North Carolina at Pembroke, making it the first American Indian Fraternity in the nation. The Delta Chapter was chartered at Oklahoma State University in the Spring of 2005. The Fraternity has come to represent excellence in all areas, as it is dedicated to the founders’ vision of leadership, individuality, community, honesty, wisdom, pride and unity.