Background: Slaughterhouse facilities and meat processing plants are known to pose significant threats to worker’s safety and health due to the hazardous conditions involving animals, tools and dangerous machines used in the meat industry. Objective: To investigate the types of injuries and associated factors experienced by workers in slaughterhouses and meat processing plants in the study area since the extent of this has an impact on the safety of the employees. Methodology: A total of 347 respondents were included in this study out of an estimated population of 2206 workers in slaughterhouses and meat processing plants in the study area. Information was obtained using structured questionnaires, Key informant Interviews and focused group discussions. Result: The types of injuries inflicted to these workers included wounds/superficial injuries (57.3%), bone fracture(7.5%), concussion, internal injury, burn, scald or frost bite(4.0%), poisoning, infection and suffocation (4.0%) and other types (8. 0%). Demographic factors had a significant influence on injury rates and so was the category of a slaughterhouse and processing plant. The level of implementation of Occupational Health and Safety Act (OSHA, 2007) determined the injury rates in these facilities. Overall, workers in Nairobi experienced very high injury rates (21.9 per 100 full-time workers). Conclusion: Demographic factors had an influence on incidence of injuries and the category of slaughterhouses and processing plants which again was closely linked with the level of compliance to OSHA, 2007.