Abstract: The present invention provides an internal combustion engine including an injection nozzle for injecting fuel. The injection nozzle is formed with a plurality of injection holes arranged in two rows concentrically relative to the center axis (L) of the injection nozzle. The injection holes in the upper row are arranged in a zigzag fashion relative to those in the lower row. Radially extending center axes (P) of the respective injection holes in the upper row are arranged on the periphery of a circle of which center is located at a position (O) on the center axis (L) of the injection nozzle, while radially extending center axes (P) of the respective injection holes in the lower row are arranged on the periphery of a circle of which center is located at a position (O) on the center axis (L) of the injection nozzle. The position (O) is spaced away from the position (O) by a predetermined distance (Z).