Triangle is the only fraternity at Purdue exclusively for engineers, scientists, and architects. Same classes. Same grind. A brotherhood that gets it.
Triangle Fraternity brings together driven men who challenge themselves academically, lead with integrity, and support each other every step of the way.
A network that lasts a lifetime.
Develop the skills to lead and make a difference.
Pursuing knowledge. Achieving greatness.
Giving back to our campus and community.
Most fraternities hide behind two or three Greek letters. We don't use any — and that's the point. Triangle is the only national fraternity built exclusively for STEM and architecture majors.
When your brothers are in the same 8 a.m. thermodynamics lecture, study group means something. So does the alumni network — Triangle brothers have shaped the aluminum can, color TV, the first web browser, and the spacecraft that left the atmosphere.
We take focused, ambitious students and sharpen the social, leadership, and professional edges that a transcript can't show. Degree first. Brotherhood for life.
Our story & values →
Major-specific study groups, upperclassman tutoring, and a house full of people who actually understand your problem set. Purdue Triangle regularly ranks in the top 10% of chapters for GPA.
Grand Prix builds, tailgates, formals, sledding when campus shuts down, and a fire pit that never quite goes out. The friendships outlast the four years — by decades.
30,000+ alumni across engineering, science, and architecture. Job and internship leads get shared in-house — often before they ever hit a public listing.
Thinking about rushing? Here's exactly how it works and what to expect.
How to rush →
Chapter life, leadership, Grand Prix, and the calendar that keeps it moving.
Chapter life →
The honest answers families want about safety, grades, and value.
For families →
Stay connected, mentor a brother, and invest in the next chapter.
Give back →
Engineers, scientists, and architects — come see the house, meet the brothers, and find out what Triangle is really about. No pressure, no obligation.
Start your rush →