Rainhold \ra(i)-nho-ld, rain-hold\ as a boy's name is a variant of Reginald (Latin), and the meaning of Rainhold is "ruler's advisor".

The baby name Rainhold sounds like Reinhold and Reinold. Other similar baby names are Rainhard, Bernhold, Reinhard, Reynold, Reinwald, Reinald, Raynald, Rainault and Ranald.