The battle of Thessalonica () was fought between the Bulgarian and the Byzantine Empires in the summer of 1014 near the city of Thessalonica in contemporary northern Greece. The Bulgarian army under the command of Nestoritsa was defeated by the Byzantines led by the governor of Thessalonica Theophylactus Botaniates and it was unable to divert the main Byzantine forces who were attacking the Bulgarian ramparts between the Belasitsa and Ograzhden mountains.