To provide a tennis ball 1 providing the good feeling in ball speed and the superior ball hitting feeling.

This tennis ball 1 has a hollow core 2 and a melton layer 3 adhered to an outer surface of the core 2. A ratio (Vf/Vi) of a bounce velocity Vf to an entrance velocity Vi is 0.685 or more in colliding the tennis ball 2 with a tennis court under a conditions that an angle of entrance is 16°C±2°C and a velocity is 30m/s ±2 m/s. A relationship of (Vf/Vi) and FD (mm) as a value of the forward deformation measured in accordance with the standard of the international tennis federation satisfies a mathematical expression of (I); 0.116×FD≤(Vf/Vi)≤0.152×FD...(I).