A liquid ejecting head comprising: a nozzle from which a liquid is ejected; a pressure chamber in which a pressure is applied to the liquid; a supply flow channel which is located on one side in a first direction relative to the pressure chamber and through which the liquid is supplied to the pressure chamber; a discharge flow channel which is located on another side in the first direction relative to the pressure chamber and through which the liquid is discharged from the pressure chamber; a first supply-side compliance substrate which is provided so as to face the supply flow channel and absorbs a vibration of the liquid in the supply flow channel; and a first discharge-side compliance substrate which is provided so as to face the discharge flow channel and absorbs a vibration of the liquid in the discharge flow channel, characterized in that a length of the first discharge-side compliance substrate in the first direction is shorter than a length of the first supply-side compliance substrate in the first direction, the liquid ejecting head further comprising: a second supply-side compliance substrate being different from the first supply-side compliance substrate and provided upstream of the supply flow channel; and a second discharge-side compliance substrate being different from the first discharge-side compliance substrate and provided downstream of the discharge flow channel, wherein the second supply-side compliance substrate and the second discharge-side compliance substrate are provided along a second direction crossing the first direction, and a length of the second supply-side compliance substrate in the second direction is equal to a length of the second discharge-side compliance substrate in the second direction. a nozzle from which a liquid is ejected; a pressure chamber in which a pressure is applied to the liquid; a supply flow channel which is located on one side in a first direction relative to the pressure chamber and through which the liquid is supplied to the pressure chamber; a discharge flow channel which is located on another side in the first direction relative to the pressure chamber and through which the liquid is discharged from the pressure chamber; a first supply-side compliance substrate which is provided so as to face the supply flow channel and absorbs a vibration of the liquid in the supply flow channel; and a first discharge-side compliance substrate which is provided so as to face the discharge flow channel and absorbs a vibration of the liquid in the discharge flow channel, characterized in that a length of the first discharge-side compliance substrate in the first direction is shorter than a length of the first supply-side compliance substrate in the first direction, the liquid ejecting head further comprising: a second supply-side compliance substrate being different from the first supply-side compliance substrate and provided upstream of the supply flow channel; and a second discharge-side compliance substrate being different from the first discharge-side compliance substrate and provided downstream of the discharge flow channel, wherein the second supply-side compliance substrate and the second discharge-side compliance substrate are provided along a second direction crossing the first direction, and a length of the second supply-side compliance substrate in the second direction is equal to a length of the second discharge-side compliance substrate in the second direction. a second supply-side compliance substrate being different from the first supply-side compliance substrate and provided upstream of the supply flow channel; and a second discharge-side compliance substrate being different from the first discharge-side compliance substrate and provided downstream of the discharge flow channel, wherein the second supply-side compliance substrate and the second discharge-side compliance substrate are provided along a second direction crossing the first direction, and a length of the second supply-side compliance substrate in the second direction is equal to a length of the second discharge-side compliance substrate in the second direction.