A Multimedia over Coax Alliance (MoCA) gateway splitter that includes a directional coupler (including a first transmission path and a second transmission path), a gateway port and a cable television (CATV) input port each electrically connected to the first transmission path, and a MoCA port electrically connected to the second transmission path such that the MoCA port is isolated from the CATV input port and coupled to the gateway port. Multiple MoCA ports may be electrically connected to the second transmission path (e.g., via a resistive splitter). The second transmission path may be electrically connected to ground. The MoCA gateway splitter may include multiple (e.g., two or three) gateway ports, each electrically connected to the CATV input port via a directional coupler (and, e.g., one or more hybrid splitters). In those embodiments, each directional coupler may be electrically connected to the MoCA port(s), for example, via a common microstrip node.