Infectious diseases of livestock are a significant burden on animal and human health, particularly in Low and Middle-Income Countries. To prevent and control these diseases, an appropriate surveillance system based on suitable up-to-date epidemiological data is required. This systematic review looks at the available data on infectious diseases of livestock in Cameroon from 2000-2020 gives an epidemiological contribution for effective control strategies and initial step for disease prioritization approach. The systematic review protocol was designed according to the PRISMA statement. Data was searched through online databases. Grey literature comprised of dissertations and thesis from veterinary higher education institutions in Cameroon. A random-effects model was used to calculate pooled prevalence using Comprehensive Meta-analysis software. Major infectious diseases of livestock in Cameroon based on prevalence were gastrointestinal parasitosis (57.4% in cattle, 67.2% in poultry, 88% in pigs), hemoparasites (21.6% in small ruminants, 19.7% in cattle), bovine pasteurellosis (55.5%), fowl salmonellosis (48.2%), SRP (39.7%), FMD (39.4% in cattle) and ASF (18.9%). Furthermore, other important endemic zoonoses in the country included: bovine tuberculosis (3.3% in cattle), brucellosis (7% in cattle, 8% in pigs), bovine leptospirosis (2.5%), RVF (10.9% in cattle, 3.7% in small ruminants) and hepatitis E virus (8.4% in pigs). Most of the retrieved research were carried out in the Adamawa, North-West and West regions. The high-pooled prevalence of various livestock infectious diseases and evidence for the endemicity of major zoonotic infections in Cameroon warrants for enhanced public health interventions strategically targeting prioritized animal diseases for surveillance and control by making sure all diseases that result in production losses, negative economic impacts and public health threats are epidemiologicaly appropriately characterised in all production systems. The evaluation of existing data, albeit publication-specific, is an important step in the process of prioritising animal diseases, including zoonosis.