Welcome to Gamma Psi Chapter's new website!

After some neglect and years without updating, we're working to refresh the site and get regular updates from chapter members. Stay tuned for more information!

The Gamma Psi chapter of Kappa Sigma is one of Oklahoma State University's premier Greek Fraternities. Founded in May of 1920 in Stillwater, Oklahoma our chapter has continued to grow and support the fellowship of our members around the Oklahoma State University campus and beyond.

The Gamma Psi chapter of Kappa Sigma is one of six Kappa Sigma chapters in the state of Oklahoma, representing all major schools and making Kappa Sigma one of the best represented collegiate fraternal orders in Oklahoma.

Kappa Sigma is the largest college social fraternity in the world with more than 200,000 living members, including over 16,000 undergraduates and 299 chapters and colonies located throughout the United States and Canada. Founded in 1869 at the University of Virginia, Kappa Sigma International Headquarters is based in Charlottesville, Virginia.


  • Fellowship

  • Leadership

  • Scholarship

  • Service

... sets our brotherhood apart from the rest. A brotherhood like no other.