"This badge requires more of me than the world requires of other men"
~The Founders of Sigma Chi, June 28, 1855


Learn more about our heritage at Purdue on the Heritage page or the Heritage video.

Sigma Chi Fraternity, Delta Delta Chapter

The Delta Delta Chapter of Sigma Chi Fraternity has a long and storied history at Purdue University.

As the University’s first fraternity, founded in 1875, our undergraduate and alumni brothers have distinguished themselves in all walks of life.

Leadership, Scholarship and Brotherhood

Sigma Chi strives to create a collegiate experience that emphasizes leadership, scholarship and brotherhood and promotes our core values of friendship, justice and learning.

Rush Sigma Chi

If you're looking to rush Sigma Chi, you're in the right place. Check out our recruitment page for more information.


Learn more about our chapter, Sigma Chi Fraternity and our Recruitment.


Stay connected and informed on alumni and undergraduate events.

Undergraduate Brothers

Keep alumni, the Purdue Greek Community and the community updated on your activities.

Join Us for a Guided Tour of Sigma Chi

Alumni Stay Connected

Follow the accomplishments and activities of the chapter and our alumni.