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.
Leadership Development
Sigma Chi offers exceptional programs to develop leadership skills in its undergraduate members including its annual Leadership Training Workshop and Horizons programs. Learn more about the Sigma Chi experience and our goal to develop tomorrow’s leaders by going to The Significance of Sigma Chi.
Sigma Chi at Purdue Celebrates 150 Years of Brotherhood
In June 2025 the Sigma Chi chapter at Purdue celebrated its 150th anniversary with a gala weekend with over 360 Sigs returning. It was an outstanding event that highlighted our life-long journeys as Sigma Chis. To read about this historic gathering go to 150 Years of Brotherhood Celebration.
Recent Events
Alumni and Undergraduate News & Events
Find out about all the exciting undergrad and alumni events, awards and activities going on at Sigma Chi Fraternity, Purdue University. See News & Events.