Triandria is a suburb of the Thessaloniki Urban Area and was a former municipality in the regional unit of Thessaloniki, Macedonia, Greece. Since the 2011 local government reform it is part of the municipality Thessaloniki, of which it is a municipal unit. The municipal unit has an area of 1.475 km. It is located east of Thessaloniki's city centre at an average elevation …Triandria is a suburb of the Thessaloniki Urban Area and was a former municipality in the regional unit of Thessaloniki, Macedonia, Greece. Since the 2011 local government reform it is part of the municipality Thessaloniki, of which it is a municipal unit. The municipal unit has an area of 1.475 km. It is located east of Thessaloniki's city centre at an average elevation of 80 m. It borders on the Thessaloniki districts of Saranta Ekklisies to the northwest and of Ano Toumpa to the southeast. Motorway 25, which forms the eastern beltway of Thessaloniki, passes east of Triandria. The suburb is named after the World War I-era "Triumvirate of National Defence", comprising the statesman Eleftherios Venizelos, together with Admiral Pavlos Koundouriotis and General Panagiotis Danglis.