Other
- The crossed Keys of Heaven, the symbol of Saint Peter, an element in:
- Papal regalia and insignia
- the Coat of arms of the Holy See
- the arms used by the Guild of Cathedral Vergers
- The symbols of Peterhouse Boat Club and by extension of Peterhouse, Cambridge
- Cross Keys Boat Club, associated with Peterhouse, Cambridge
- Official drink of St Peter's College, Oxford
Read more about this topic: Cross Keys