| Last Name | First Name | Nickname | City | State | Graduation Year |
|---|---|---|---|---|---|
| Schmidt | Richard | Schmidty | Westmoreland | New Hampshire | 1968 |
| Schmidt | Douglas | Tomkins Cove | New York | 1975 | |
| Schmidt | William | Hobe Sound | Florida | 1964 | |
| Schmitt | James | Bluffton | South Carolina | 1968 | |
| Schneggenburger | Pentelope | Fort Lauderdale | Florida | 1981 | |
| Schneider | Mark | Honeoye Falls | New York | 1981 | |
| Schrader | David | Leander | Texas | 1974 | |
| Schrok | Gert | Falls Church | Virginia | 1985 | |
| Schuler | Brian | Littleton | Colorado | 2002 | |
| Schvarczkopf | John | Farmington | Pennsylvania | 1949 | |
| Schwasnick | Louis | Simpsonville | South Carolina | 1969 | |
| Scott | Charles | Chambersburg | Pennsylvania | 1954 | |
| Scott | William | Bergen | New York | 1957 | |
| Scott | Mitchell | Shrewsbury | Pennsylvania | 1994 | |
| Scott | Christopher | Scotty | Knoxville | Tennessee | 1978 |
| Sedor | Stephen | Jensen Beach | Florida | 1962 | |
| Serbu | Paul | Vonore | Tennessee | 1957 | |
| Serre | Roger | ||||
| Sexton | Thomas | Admiral | N.scituate | Massachusetts | 1984 |
| Shaughnessy | Karl | Rochester | New York | 1978 | |
| Sheehan | Michael | New Hartford | New York | 1971 | |
| Sheehy | Jacob | Jake | New York | New York | 2013 |
| Sheftel | David | McLean | Virginia | 1950 | |
| Sheldon | Bill | Saratoga Springs | New York | 2005 | |
| Sherman | James | Rome | New York | 1975 |
Omicron Pi Omicron