This is a list of former and current castles and fortifications in South Africa and contains historical fortifications, military instillations, mock castles and Manor Houses, that may be referred to as "castles". A fortification or Fort is easily identifiable as a structure built purely for defensive purposes, however a castle is slightly more subjective. The historical term castle refers to a Fortification that was also a seat of power and governance over the local area, the modern term might refer to a Manor House, a Châteaux or a Mansion and is more a matter of semantics. The castles will be discussed by province.