Apollo 3 may refer to:
Apollo 3 (band), a German rock band AS-203, an uncrewed Saturn IB launch which supported the Apollo program but carried no Apollo spacecraft, intended to be launched third in the series AS-202, intended as the second uncrewed Apollo/Saturn IB flight, but launched after AS-203 because of spacecraft delays SA-3 (Apollo), the third test flight of the Saturn I rocket and part of Project Highwater See also List of Apollo missions