The Dornier Do 217 was a heavy bomber used by Germany during World War II. It was designed from scratch as a replacement for the venerable Dornier Do 17.

In almost every way, the Do 217 was a success. It could carry a much heavier bombload than either the Heinkel He 111 or the Junkers Ju 88. It was also very fast, surpassing both aircraft in maximum speed. It was Germany's largest bomber for nearly two years until the Heinkel He 177 was finally safe enough to use. Do 217's sank the Italian battleship Roma with Fritz X missiles as she steamed to the Allies after Italy's capitulation. Do 217's were phased out of combat use in mid 1944.

Like the Do 17 and the Ju 88, the aircraft was used in a variety of roles, including that of the night-fighter - a sign that Germany desperately needed fighters far more than it needed bombers. Production was stopped in April 1944 in favor of single-engined fighters. Operational use of the Do 217 as a night-fighter was restricted in 1943 to the NJG 4.

A total of 1,905 Do 217s were produced. As of today, no complete aircraft survives. The largest known relic of this aircraft, a large piece of the rear fuselage, can be found at the Italian Air Force museum in Rome.