| Sigma Iota | |
|---|---|
| ΣΙ | |
 | |
| Founded | November 27, 1904 La Colonia Hispano-Americana March 12, 1912 as Sigma Iota Louisiana State University |
| Type | Social |
| Affiliation | Independent |
| Status | Merged |
| Merge Date | December 26, 1931 |
| Successor | Phi Iota Alpha |
| Emphasis | Latin American |
| Scope | International |
| Motto | Omne Rarum Carum |
| Chapters | 14 |
| Headquarters | United States |
Sigma Iota (ΣΙ), Established March 12, 1912 was the first Latin American–based Greek lettered inter-collegiate fraternity in the United States. On December 26, 1931 Sigma Iota Fraternity merged with Phi Lambda Alpha Fraternity to form Phi Iota Alpha.