Dimitrios written also as Demetrius Emmanuel[1] (Greek: Δημήτριος Εμμανουήλ) Kasdaglis written also as Casdagli(s)[1] (Greek: Κάσδαγλης), (10 October 1872 in Salford – 6 July 1931 in Bad Nauheim) was a Greek-Egyptian tennis player.

Kasdaglis was born in Kersal Hill, England, was domiciled in Egypt but according to the official bulletin he participated as a member of the Greek team.

In the singles, he defeated Defert of France in the first round, Konstantinos Akratopoulos of Greece in the second, and Momcsilló Tapavicza of Hungary in the semifinals before facing John Pius Boland of Great Britain and Ireland in the final.

The medal is credited to Kasdaglis as a Greek by the International Olympic Committee.

In the final, Kasdaglis again faced Boland, this time paired with Friedrich Traun of Germany.