A resin molded product produced by injection molding includes: a gate mark formed on a non-design surface; and a step provided so as to intersect with a flow of a resin injected from a gate. When a flow distance of the resin from the gate mark to an end portion of the resin molded product is L [mm], and a thickness of the resin molded product is t [mm], the resin molded product is configured to have L/t of 185 or more, and a tangential angle of the step is 5° to 30°.