Charles Greene Bittick Jr. (November 2, 1939 – April 28, 2005) was an American water polo player and swimmer.

He won three silver medals, two in the 100 m backstroke and one in water polo, at the Pan American Games in 1959–63.

[1] After retiring from competitions he settled in Yorba Linda, California, where he worked as a broker for Farmer's Insurance.

He remained active in recreational sports, and in 1997 climbed Mount Rainier; he also crossed the Sea of Cortés in a kayak, together with his brother.

This biographical article relating to a water polo figure from the United States is a stub.