A spark plug including a housing as a ground contact to an internal combustion engine, a center electrode situated in the housing along a center axis of the spark plug, an insulator between the center electrode and the housing, and a two-legged ground electrode whose legs are located on the combustion chamber side of the center electrode and angled with respect to one another in a leg plane which is perpendicular to the center axis, the two ends of the ground electrode being connected to the housing respectively by one connection point, a first gap between one end of the housing on the combustion chamber side and the leg plane being smaller than or equal to a second gap between one of the connection points and the center axis, and/or the ground electrode being tapered toward the center axis.