Abstract: Fired structures are abundant in Northern Greece and can be used for accurate estimations of the Earth’s ancient magnetic field components. Two kilns belonging to the Classic-Hellenistic period have been sampled in Amphipolis and archaeointensity measurements have been performed on a set of 12 samples. Together with detailed rock magnetic studies, three reliable archaeointensity values (one from each kiln and one from a brick) have been obtained, in good correlation with the Bulgarian reference archaeomagnetic curve.