Welcome to Theta Chi Fraternity - Sigma Chapter. We are a nonprofit organization focused on making a positive impact in the lives of our members and community. We provide a rare opportunity to develop your resume with philanthropic involvement and leadership experience, while simultaneously forging life long friendships along the way. Our organization is one of the oldest on campus, boasting a 102 year old charter. At Oregon State University, we pride ourself on the rich traditions of those who came before us, while constantly working to improve the organization as a whole. Here you will find information regarding our rich history as a brotherhood at OSU as well as information about our chapter’s strong presence on campus, how to join our brotherhood, and news of upcoming events.

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Interested in joining?

Are you a current or future student of OSU and wanting to get involved with Greek Life? We believe Theta Chi would be a great place to start your search. Head over to our Recruitment page for more information about who we are and what we do. We are always looking for quality men to join our brotherhood. Don't forget to fill out our Recruitment Interest Form to let us know more about you!

Want to suggest a member? 

Do you know somebody who you think would be a great addition to our fraternity? Fill out our Suggest A Member form to recommend a person to be a member of Theta Chi fraternity at OSU today!

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