Sigma Chi Fraternity

Please join us in welcoming the Mu Omega Chapter of Sigma Chi at Stony Brook University! This moment reflects years of dedication, perseverance, and commitment to the values that define our brotherhood. Here’s to many more years of strong brotherhood and success! IHSV 🤝

Congratulations to Significant Sig Urban Meyer, CINCINNATI 1986, on being inducted as the 7th member of the @UF of Florida’s Ring of Honor! Coach Meyer won two of his three national titles with the Florida Gators in 2006 and 2008. In Hoc 🤝

Happy Flag Friday! Building up their chapter brick by brick at @virginia_tech is this week’s $25 Sigma Chi Store gift card winner, Evan Delcher, VIRGINIA TECH 2030. Swipe to see what he had to say ➡️ Send us your best photos via DM or use #sigmachi #flagfriday

Breaking records is becoming a Sigma Chi tradition. Officially 385,000+ initiated brothers and counting, Sigma Chi continues to grow stronger every semester, cementing ourselves as the #1 largest men's Greek-letter fraternity in the world. Tag your favorite brother ⬇️

Congratulations to all our new brothers completing initiation and joining Sigma Chi Fraternity, the largest men's Greek-letter organization! Here are just a few of our chapters continuing our important legacy of Friendship, Justice, and Learning. In Hoc 🤝 Tag a new brother ⬇️

🚨 SIGMA CHI CHAPTERS, THE CHALLENGE IS ON. 🚨 From now through December 1, we're coming together to support the next generation of Sigma Chi, all while helping our Fraternity take on 15 other Greek-letter organizations in the Giving Tuesday Interfraternal Challenge.

Happy birthday to 63rd Grand Consul Lee Beauchamp, @TAMU 1975! Thank you for all of your service and continued leadership to Sigma Chi!

Have a happy and safe Halloween 🎃 In Hocus Pocus #Halloween2026

Happy 190th birthday to Founder William Lewis Lockwood, MIAMI (OHIO) 1858, who was born on Oct. 31, 1836, and entered the Chapter Eternal on Aug. 17, 1867. All honor to his name.

Happy Flag Friday! Celebrating homecoming at @eku with his chapter is this week’s $25 Sigma Chi Store gift card winner, Reece Nolan, EASTERN KENTUCKY 2028. Swipe to see what he had to say ➡️ Send us your best photos via DM or use #sigmachi and #flagfriday

New Spirit Halloween costumes just dropped 👀 Tag someone who is picking one up for this weekend ⬇️ #Halloween2026

Today, on National First Responders Day, we honor and thank all who work to keep us safe in our communities. If you’re a brother who’s a first responder, please visit the link in our bio to receive a Recognition Pin. Tag a brother who is a first responder ⬇️  #FirstRespondersDay

Marching toward Rome on Oct. 27, 312 A.D., Constantine looked heavenward, saw a cross in the sky with the Greek words “en toutoi nika,” derived from the Latin translation, “In Hoc Signo Vinces” and is interpreted into English as “In this Sign, you shall conquer.”

Need some Halloween movies and TV show recommendations to get into the spooky spirit? Check out some of our favorites featuring our Sigma Chi brothers! Comment your favorite Sigma Chi feature below! ⬇️🎃

Formal season is around the corner. Let us know your favorite formal location ⬇️ @gowithengine, has you covered for all travel. Save an average of 26% on hotels, keep the loyalty status you've already earned, and get 24/7 support. Link in our bio to start your trip today.

It's just a bunch of Hocus Pocus over at the Sigma Chi house 🎃 Which Halloween movie best fits your chapter? Let us know ⬇️ #halloween

Did you know Significant Sig Joe Davis, BELOIT 2010, is the primary play-by-play broadcaster for the 2026 World Series? Full list of Sigs who have won a past World Series. Who’s taking home the Commissioner's Trophy this year? The @RaysBaseball or the @Brewers ? Let us know! ⬇️

Happy Flag Friday! Taking in the sights in San Juan, Puerto Rico is this week’s $25 Sigma Chi Store gift card winner, Imesh Shrestha, TEXAS-ARLINGTON 2027. Swipe to see what he had to say ➡️ Send us your best photos via DM or use #sigmachi #flagfriday

The Legendary Sweater for Legendary brothers on and off the field 🤝 Grab yours before they’re gone for the season using the link in our bio.

We've officially surpassed $1,000,000 raised for @huntsmancancer this academic year! Thanks to the dedication of Sigma Chi brothers and sweethearts across North America, we're making incredible progress toward our $5,500,000 fundraising goal for the 2026–27 academic year.