Triandria (Greek: Τριανδρία) is a suburb of the Thessaloniki Urban Area and was a former municipality in the regional unit of Thessaloniki, Macedonia, Greece.

[3] It is located east of Thessaloniki's city centre at an average elevation of 80 m (260 ft).

[3] 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 (borough) is named after the World War I-era "Triumvirate of National Defence" (Τριανδρία της Εθνικής Αμύνης), comprising the statesman Eleftherios Venizelos, together with Admiral Pavlos Koundouriotis and General Panagiotis Danglis.