Harvard-Yale sister colleges
Harvard's residential houses and Yale's residential colleges have established sisterly relationships, much like the Oxbridge sister colleges. These twinnings are rarely invoked nowadays, except on the weekend of the Game when some houses/colleges find accommodation for visiting rival fans.
| Harvard | Yale |
|---|---|
| Adams House | Saybrook College |
| Cabot House | Trumbull College |
| Currier House | Ezra Stiles College |
| Dudley House Pforzheimer House, Harvard | Silliman College* |
| Dunster House | Berkeley College |
| Eliot House | Jonathan Edwards College |
| Kirkland House | Calhoun College |
| Mather House | Morse College |
| Leverett House | Timothy Dwight College |
| Lowell House | Pierson College |
| Quincy House | Branford College |
| Winthrop House | Davenport College |
- Note: Although Harvard has 13 houses and Yale only 12 colleges, Dudley house has only a handful of undergraduates, and is doubled-up with Pforzheimer as sisters of Silliman, the largest of the Yale colleges.
Although some of these houses and colleges have established links to various Oxford and Cambridge colleges, the ties are not transitive so it is impossible to make a four–column chart.