The objective of this study is to epidemiologically describe large and small ruminant Brucellosis in Turkey by conducting a register-based study. For this purpose, the data concerning Brucellosis which is a notifiable disease in Turkey, were obtained from anonymous disease reports of the World Organization for Animal Health. In cattle, 7,889 outbreaks of Brucellosis were registered in all 81 provinces of Turkey between 2005 and 2015 were 15,059 animals contracted the disease. In sheep and goats, 2,277 outbreaks of Brucellosis occurred in the same time period, where 21,241 animals also got sick. There was a decreasing trend in Brucellosis both in humans and in ruminants due to combating the disease. The disease in cattle was mostly seen in winter and the highest prevalence was in the East Anatolian Region. Furthermore, Brucellosis in small ruminants was mostly seen in the Central Anatolian region during the winter months. Both species (large and small ruminants) have the lowest rate of outbreaks in the summer months.