Disclosed are an apparatus and method of monitoring Ethernet communication for a vehicle and a vehicle including the same. The apparatus includes a traffic statistics data acquisition unit configured to acquire traffic from each of ports of an Ethernet switch, a database (DB) configured to store communication information between controllers connected to the Ethernet switch, a switching path check unit configured to check a switching path of the Ethernet switch, and a monitoring unit configured to calculate a reference value of normal traffic for each port, between ports, and for each traffic flow of the Ethernet switch based on communication information between the controllers and a switching path, to compare the calculated reference value of the normal traffic with traffic acquired from each port of the Ethernet switch, and to monitor whether a communication state of the Ethernet switch is abnormal.