The Walls of Thessaloniki (Greek: Τείχη της Θεσσαλονίκης) are the city walls surrounding the city of Thessaloniki during the Middle Ages and until the late 19th century, when large parts of the walls, including the entire seaward section, were demolished as part of the Ottoman authorities' restructuring of Thessaloniki's urban fabric.
Thessaloníkis stadsmurar (grekiska: Τείχη της Θεσσαλονίκης) var stadsmurarna kring staden Thessaloníki under Medeltiden och fram till slutet av 1800-talet då stora delar av murarna, däribland hela muren mot havet förstördes som en del av det osmanska myndigheternas omstrukturering av Thessaloníkis stadsplan.