Dimitris was the name of a member of the Maquis called out by Michael Eddington during his last stand against the Jem'Hadar on the planet Athos IV. Eddington ordered Dimitris and Stiles to watch the team's right flank. (DS9: "Blaze of Glory")
Eddington gave orders to the names Crenshaw, Yuen, Stiles, and Dimitris in an attempt to make it appear that more than he was fighting against the Jem'Hadar.
According to the script, the pronunciation for Dimitris was "dih-MEE-tris".