These are all the SCA branches whose names start with O known to the Canon database. The list includes a number of foreign branches, mostly kingdoms; these are relevant mainly in tracking people who have moved away since receiving awards. Follow any linked name to see expanded information about the branch, including the known residents and the events held in the region.
- Okewaite, canton in Politarchopolis
- Outlands, kingdom
- Outremer, barony in Lochac (alternate name for Rowany)
- Oxington Chase, canton in Mordenvale