Matteo Gladig (1880, Triest – 1915, Ljubljana) was an Italian chess master.
Born in Triest (then Austria-Hungary Empire), he won at Triest 1905 (torneo sociale della Società Scacchistica Triestina), took 2nd, behind Giovanni Martinolich, at Triest 1909 (campionato della SST), and drew a short match with Oldřich Duras (+1 –1 =2) at Triest 1909. He won, ahead of Stefano Rosselli del Turco and Arturo Reggio, at Rome 1911 (unofficial Italian Chess Championship, V Torneo dell'Unione Scacchistica Italiana).[1]
During World War I, he – as an Austrian citizen of Italian origin – did not want to fight for an Austrian Army on the Italian Front. Finally, he was captured and tried in Laibach (Ljubljana, then Austria-Hungary, now Slovenia) where he died.