A liquid ejecting head comprising: a flow path member including a plurality of ejection holes, a plurality of pressurizing chambers which are respectively communicated with the plurality of ejection holes, and one, or a plurality of common flow paths which are communicated with the plurality of pressurizing chambers; a piezoelectric actuator substrate which is laminated on the flow path member so as to cover the plurality of pressurizing chambers; and a wiring board, wherein the piezoelectric actuator substrate is formed by laminating a first electrode, a piezoelectric body, and a plurality of second electrodes in this order from the flow path member side, wherein, when the liquid ejecting head is viewed planarly, the plurality of pressurizing chambers are in diamond shapes with two obtuse angle portions and two acute angle portions, respectively, and are arranged on a row which goes along a diagonal line connecting the two obtuse angle portions, and on a column which goes along a diagonal line connecting the two acute angle portions, respectively, with approximately equal intervals, wherein the common flow path extends along a direction of the row, and communicates with the pressurizing chambers which are aligned on both sides of the common flow path row by row, wherein each of the pressurizing chambers communicating with the common flow path includes a first region which is overlapped with the common flow path and a second region which is not overlapped with the common flow path, wherein the plurality of second electrodes are arranged so as to overlap with the plurality of pressurizing chambers respectively, and include an electrode main body which is disposed within the pressurizing chamber, a first extraction electrode (725b-1) of which one end portion is connected to the electrode main body in the first region and the other end portion is extracted to an outside of the pressurizing chamber, and a second extraction electrode (725b-2) of which one end portion is connected to the electrode main body in the second region, and the other end portion is extracted to the outside of the pressurizing chamber, wherein any one of the first extraction electrode (725b-1) and the second extraction electrode (725b-2) of the second electrode is electrically connected to the wiring board, and the first extraction electrode (725b-1) and the second extraction electrode (725b-2) are alternately connected in the row direction, and wherein, when the liquid ejecting head is viewed planarly, the electrode main body has a diamond shape which is similar to the pressurizing chamber, and the first and second extraction electrodes (725b-1, 725b-2) are extracted from the acute angle portion of the electrode main body in the row direction. a flow path member including a plurality of ejection holes, a plurality of pressurizing chambers which are respectively communicated with the plurality of ejection holes, and one, or a plurality of common flow paths which are communicated with the plurality of pressurizing chambers; a piezoelectric actuator substrate which is laminated on the flow path member so as to cover the plurality of pressurizing chambers; and a wiring board, wherein the piezoelectric actuator substrate is formed by laminating a first electrode, a piezoelectric body, and a plurality of second electrodes in this order from the flow path member side, wherein, when the liquid ejecting head is viewed planarly, the plurality of pressurizing chambers are in diamond shapes with two obtuse angle portions and two acute angle portions, respectively, and are arranged on a row which goes along a diagonal line connecting the two obtuse angle portions, and on a column which goes along a diagonal line connecting the two acute angle portions, respectively, with approximately equal intervals, wherein the common flow path extends along a direction of the row, and communicates with the pressurizing chambers which are aligned on both sides of the common flow path row by row, wherein each of the pressurizing chambers communicating with the common flow path includes a first region which is overlapped with the common flow path and a second region which is not overlapped with the common flow path, wherein the plurality of second electrodes are arranged so as to overlap with the plurality of pressurizing chambers respectively, and include an electrode main body which is disposed within the pressurizing chamber, a first extraction electrode (725b-1) of which one end portion is connected to the electrode main body in the first region and the other end portion is extracted to an outside of the pressurizing chamber, and a second extraction electrode (725b-2) of which one end portion is connected to the electrode main body in the second region, and the other end portion is extracted to the outside of the pressurizing chamber, wherein any one of the first extraction electrode (725b-1) and the second extraction electrode (725b-2) of the second electrode is electrically connected to the wiring board, and the first extraction electrode (725b-1) and the second extraction electrode (725b-2) are alternately connected in the row direction, and wherein, when the liquid ejecting head is viewed planarly, the electrode main body has a diamond shape which is similar to the pressurizing chamber, and the first and second extraction electrodes (725b-1, 725b-2) are extracted from the acute angle portion of the electrode main body in the row direction.