An inkjet head comprising: a silicon nozzle substrate having an ink channel surface and an ink ejection surface opposite to the channel surface, and having a nozzle penetrating from the channel surface to the ejection surface; a channel substrate bonded to the channel surface of the silicon nozzle substrate, and including an ink channel and a substrate body that forms the ink channel; and a liquid-repellent film provided on the ejection surface of the silicon nozzle substrate, wherein the channel substrate includes, as a channel for the ink, a through channel that penetrates the substrate body so as to face the nozzle, n-number of individual circulation channels that communicate with the through channel, extend in a direction away from the nozzle, and have a portion overlapping the substrate body in a plan view seen from an opposite surface side of the channel substrate bonded to the silicon nozzle substrate; and a positional relationship between each of the individual circulation channels and the nozzle satisfies the following Expression 1, L × tanφ > H 1, wherein each symbol in Expression 1 has the following meanings in a cross-section obtained by cutting the silicon nozzle substrate and the channel substrate along a plane orthogonal to the channel surface of the silicon nozzle substrate so as to include a center of the nozzle and the individual circulation channel, φ: an angle formed by a straight line connecting a first nozzle end located on the ejection surface that is farther from the individual circulation channel and a second nozzle end located on the channel surface that is closer to the individual circulation channel with the ejection surface, L: a distance from a straight line orthogonal to the ejection surface including the first nozzle end to an intersection farthest from the channel surface among intersections of a formation surface of the through channel and a formation surface of the individual circulation channel in the substrate body, H1: a distance from the ejection surface to an intersection farthest from the channel surface among the intersections of a formation surface of the through channel and a formation surface of the individual circulation channel in the substrate body, wherein the cross-section of the nozzle in the silicon nozzle substrate has a shape that decreases stepwise from the channel surface toward the ejection surface. wherein the channel substrate includes, as a channel for the ink, a through channel that penetrates the substrate body so as to face the nozzle, n-number of individual circulation channels that communicate with the through channel, extend in a direction away from the nozzle, and have a portion overlapping the substrate body in a plan view seen from an opposite surface side of the channel substrate bonded to the silicon nozzle substrate; and a positional relationship between each of the individual circulation channels and the nozzle satisfies the following Expression 1, L × tanφ > H 1, wherein each symbol in Expression 1 has the following meanings in a cross-section obtained by cutting the silicon nozzle substrate and the channel substrate along a plane orthogonal to the channel surface of the silicon nozzle substrate so as to include a center of the nozzle and the individual circulation channel, φ: an angle formed by a straight line connecting a first nozzle end located on the ejection surface that is farther from the individual circulation channel and a second nozzle end located on the channel surface that is closer to the individual circulation channel with the ejection surface, L: a distance from a straight line orthogonal to the ejection surface including the first nozzle end to an intersection farthest from the channel surface among intersections of a formation surface of the through channel and a formation surface of the individual circulation channel in the substrate body, H1: a distance from the ejection surface to an intersection farthest from the channel surface among the intersections of a formation surface of the through channel and a formation surface of the individual circulation channel in the substrate body, wherein the cross-section of the nozzle in the silicon nozzle substrate has a shape that decreases stepwise from the channel surface toward the ejection surface.