Hemolivia mauritanica (Sergent et Sergent, 1904) infections were found in 14% (n= 14) of Testudo graeca Linnaeus, 1758 tortoises in Bulgaria and in 92% (n = 26) of those in Turkey. Hemolivia mauritanica-like gametocytes were found in 81% (n = 47) of wild Testudo marginata Schoepff, 1792 tortoises in Greece. Parasitaemia intensity (the percentage of infected red blood cells found in approximately 104 cells) was 0.03-22.4% in T. graeca and 0.06-12.27% in T. marginata. On the other hand, all blood samples from 40 Bulgarian, 38 Greek, and 18 Croatian specimens of Testudo hermanni Gmelin, 1789 were negative.