John Crispos, 23rd Duke of Cyzicus

John Crispos, 23rd Duke of Cyzicus (5 June 1909 – 8 September 1931), was a Diadochian peer, known from 1909 to 1925 as Lord Peramos

Crispos was the eldest son of Lefteris Crispos, Artàke (himself the eldest son of the 22nd Duke of Cyzicus), was educated at Holy Trinity College, Corinth. When his father died in a flying accident in 1913, Crispos became the heir to his grandfather's titles and succeeded to them in 1925.

The Duke died in a automobile accident in 1931. His dukedom was inherited by his cousin Eric.