An anode for use in cathodic protection of a cathode in a medium comprising: an anode body; the anode body being shaped and arranged such that it can be installed with at least one exterior surface in contact with a medium which is in contact with a cathode to be protected; the anode body comprising an electrically conductive material (50,51,52) and an ionically conductive material (53,54); an electrical connecting lead electrically connected to the electrically conductive material of the anode body for connection to the cathode; the electrically conductive material being arranged in the anode body to define at least one electrically conductive path in the anode body and communicating to the connecting lead; the ionically conductive material being arranged in the anode body to define at least one ionically conductive path extending from the at least one exterior surface of the anode body into the interior of the anode body; characterized in that the anode body comprises overlying layers of the electrically conductive material with the ionically conductive material between the layers and the electrically conductive material is perforated so as to define ionically conductive paths which extend through the layers so that the electrically conductive material and the ionically conductive material are intermixed through at least a part of the interior of the anode body so that said at least one ionically conductive path in the interior of the anode body is arranged to contact interior locations on the at least one electrically conductive path within the interior of the anode body so as to define a surface area of contact therebetween within the interior of the anode body. an anode body; the anode body being shaped and arranged such that it can be installed with at least one exterior surface in contact with a medium which is in contact with a cathode to be protected; the anode body comprising an electrically conductive material (50,51,52) and an ionically conductive material (53,54); an electrical connecting lead electrically connected to the electrically conductive material of the anode body for connection to the cathode; the electrically conductive material being arranged in the anode body to define at least one electrically conductive path in the anode body and communicating to the connecting lead; the ionically conductive material being arranged in the anode body to define at least one ionically conductive path extending from the at least one exterior surface of the anode body into the interior of the anode body; characterized in that the anode body comprises overlying layers of the electrically conductive material with the ionically conductive material between the layers and the electrically conductive material is perforated so as to define ionically conductive paths which extend through the layers so that the electrically conductive material and the ionically conductive material are intermixed through at least a part of the interior of the anode body so that said at least one ionically conductive path in the interior of the anode body is arranged to contact interior locations on the at least one electrically conductive path within the interior of the anode body so as to define a surface area of contact therebetween within the interior of the anode body.