Dimitrios Ioannides (also Dimitris Ioannidis) (March 13, 1923) was a Greek military officer who was involved in the Greek military junta of 1967-1974.

He was born in Athens to an upper middle-class business family with roots in Epirus

He partipated on the government side in the Greek Civil War and later served in the Makronisos internment camp, which detained communists. In 1963, he served in Cyprus.

Ioannides took active part in the coup d'etat of April 21, 1967 but preferred to stay in the background during the first six years, allowing George Papadopoulos take the limelight. Ioannides became chief of the Greek Military Police (ESA) which he developed into a feared force for military and civilians alike. He was promoted to the rank of colonel in 1970 and brigadier general in 1973.

After the Athens Polytechnic uprising of November 1973, Ioannides organised a coup d'etat and, on November 25, overthrew Papadopoulos and installed his friend and fellow Epirote, Phaedon Gizikis, as President of Greece.

Ioannides also organised the July 15, 1974 coup d'etat in Cyprus which overthrew the government of Archbishop Makarios III. This led to the Turkish invasion of the island on July 20 which, in turn, led to the downfall of the Greek Junta.

Ioannides was arrested and charged with rebellion and treason. He was sentenced to death which was converted to a life sentence, which is continuing at Korydallos Prison.

In 2002, his name, along with other surviving members of the Junta leadership, was removed from the Greek register of electors