Carrie Underwood
Carrie became famous from being the winner of American Idol, season four. She is a Tri-Sigma from a chapter in Northern Oklahoma!
Linda Denham
Linda is a Tri-Sigma and also creator of the Care Bears. The Harmony Bear of the Care Bears was created especially for Tri Sigmas, the three hearts in the middle representing the triangle, one of Tri Sigma's symbols.
- Other famous Sigmas include Miss America 2006, Jennifer Blackburn Dunn- U.S. House of Representatives, and Gladys Morelock- Superintendent of the U.S. Mint
- Tri Sigma is the only sorority with a chapter in which all members have hearing impairments.
- Sigma Sigma Sigma was the first sorority in Alaska, and currently is the only sorority with two chapters in the state
- Sigma Sigma Sigma was the first sorority to establish an international chapter outside of North America
- Tri Sigma is the only sorority with their own Philanthropy, The Sigma Sigma Sigma Foundation
- The play atrium featured in the movie Patch Adams was funded by Sigma Sigma Sigma
- Sigma Sigma Sigma was the first sorority to adopt a zero tolerance hazing policy
