| Sigma Phi | |
|---|---|
| ΣΦ | |
 | |
| Founded | March 4, 1827 Union College |
| Type | Secret |
| Affiliation | NIC |
| Status | Active |
| Scope | National |
| Motto | Esto Perpetua ("Let it be perpetual") |
| Colors | Azure and Argent |
| Publication | The Flame |
| Chapters | 7 |
| Headquarters | P.O. Box 57417 Tucson, Arizona 85732-7417 United States |
| Website | sigmaphi.org |
The Sigma Phi Society (ΣΦ) is the second Greek fraternal organization founded in the United States and the first to establish a chapter at another college, making it the first national Greek organization.[1]