Shrines that enshrine emperors or imperial ancestors are often referred to as 'jingu' and those that enshrine a member of the imperial household are commonly entitled 'gu.'
なお、天皇や皇室祖先神を祭神とする神社を神宮と呼ぶことが多く、天皇家につながる人物（皇族）を祭神とする神社を宮と呼ぶことが多い。