Triangle Fraternity - Iowa State

Triangle Fraternity - Iowa State A social, professional and STEM Fraternity at Iowa State University

Triangle is a social Greek Fraternity, founded in 1907, whose membership is major-specific for those men that are pursuing a degree in Engineering, Architecture, or Science fields. Our men play leading roles on campus, in our community, and have an impact on others that remain their entire lives. Through our Philanthropic work, Intramural Sports participation, academics, campus/community involvement, and member development, we strive to be outstanding.

Saying goodbye to another year in Ames🌪️ We’ll see ya in August 🫡
05/26/2026

Saying goodbye to another year in Ames🌪️ We’ll see ya in August 🫡

BROTHER SPOTLIGHT🔺 Meet sophomore, Owen Mattson, studying Mechanical Engineering from Lakeville, MN! Owen had a busy fir...
05/23/2026

BROTHER SPOTLIGHT🔺 Meet sophomore, Owen Mattson, studying Mechanical Engineering from Lakeville, MN! Owen had a busy first year being a main character in Yell Like Hell and Lip Sync, winning Mr. APhi Foundation, and making the Dean’s List for Fall and Spring! Read more about why Owen chose Triangle ⤵️

“Triangle has been the best decision I’ve made because of the true friendships I’ve found. It really does feel like a brotherhood and everything I’ve done in Greek Week and Homecoming has added a lot to my Iowa State experience. Everyone around me is a good influence to excel academically, but the fraternity has also opened up my social life to so many great experiences.”

We’re grateful to call Owen our Brother!

Hats off to the Class of 2026 🎓 Thank you for all your contributions to our Brotherhood - we’re grateful you chose your ...
05/18/2026

Hats off to the Class of 2026 🎓 Thank you for all your contributions to our Brotherhood - we’re grateful you chose your adventure at 🌪️

Last weekend we welcomed 5 new men into our Brotherhood at our Spring Initiation! Congratulations to Austin, Jacob, Luke...
05/06/2026

Last weekend we welcomed 5 new men into our Brotherhood at our Spring Initiation! Congratulations to Austin, Jacob, Luke, Reed and Thomas🔺 Special thanks to our New Member Educator Calvin and VP of Traditions Anel for their work with our Spring class, and our Alumni who joined us!

05/06/2026

Thank you to the Iowa State Daily for visiting us and creating this awesome feature! We loved sharing our home at Iowa State; Go Cyclones! 🌪️

Flexed our hearts and raised over $2,500 in memory of our Brother Jeremy and for mental health services in Iowa! 💪 Thank...
05/06/2026

Flexed our hearts and raised over $2,500 in memory of our Brother Jeremy and for mental health services in Iowa! 💪 Thank you to everyone who attended, for keeping us fueled, and Nathan, Zach and Graham for planning such a great week! 🧠💚 Tomorrow needs you!

WELCOME, CLASS OF 2030 🌪️ Our Summer Recruitment Team is excited to meet the newest Cyclones who will make up our Fall 2...
05/01/2026

WELCOME, CLASS OF 2030 🌪️ Our Summer Recruitment Team is excited to meet the newest Cyclones who will make up our Fall 2026 Class! Fill out our interest form (link in our bio), DM us, or text our team for more info!

GREEK WEEK 2026 🎤 We had the best time with and and took home 3rd in Lip Sync overall along with best set and best lin...
04/20/2026

GREEK WEEK 2026 🎤 We had the best time with and and took home 3rd in Lip Sync overall along with best set and best line, 3rd in Greek Race and Olympics, and raised over $19,000 for ‼️ Special thanks to our Co-Chairs for their hard work and leadership for Greek Week and all our participants🕺

Calling all Ames residents ➡️ Join us tomorrow for a Chipotle Fundraiser from 4-8 PM to benefit FRC Team Neutrino #3928...
04/17/2026

Calling all Ames residents ➡️ Join us tomorrow for a Chipotle Fundraiser from 4-8 PM to benefit FRC Team Neutrino #3928 ☄️ Show this flyer at checkout or use the online ordering code VWX48L3! Thank you for helping us support Team Neutrino!

Founded in 1907. Built on brotherhood ever since.From our roots to Iowa State in 1964, today we celebrate the legacy, th...
04/15/2026

Founded in 1907. Built on brotherhood ever since.

From our roots to Iowa State in 1964, today we celebrate the legacy, the memories, and the men who made it what it is. Looking back at old photos reminds us how far we’ve come and what still connects us.

Here’s to the past, the present, and the future of Triangle. 🔺

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Ames, IA

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