Brucellosis is a systemic infectious disease, and multi-organ involvement is commonly seen. However, thyroid gland involment is a rare complication of brucellosis. In this report, a 34 years old male patient who had been followed up with the complaints of malaise, pain in front of the neck, throat pain, joint pains and fever, was presented. This case was diagnosed as brucella subacute thyroiditis by serological and histological findings. The patient was succesfully treated with rifampicin (300 mgr/day) plus doxycycline (200 mgr/day) therapy for eight weeks. The aim of this presentation was to discuss subacute thyroiditis, as a rare complication of brucellosis, and to withdraw the attentions of the clinicians on this subject.