The liquid ejection head has: a plurality of head units each of which includes a plurality of nozzles, a plurality of pressure chambers connected respectively to the plurality of nozzles, liquid supply ports for supplying liquid respectively to the plurality of pressure chambers, and a plurality of actuators causing the liquid to be ejected respectively from the plurality of nozzles; and a single common liquid chamber plate formed with a common liquid chamber which supplies the liquid to the plurality of pressure chambers of the plurality of head units, wherein: the plurality of head units are arranged in a planar configuration; the plurality of head units are covered with the single common liquid chamber plate; and the common liquid chamber is provided in common to the plurality of head units.