Keel bone damage (KBD) in laying hens is a major welfare concern in poultry production. Damage to the keel bone generally affects productivity and health of the chicken. Despite the growing concern about KBD, there has not been any research focusing on KBD in Kenya. The aim of this study was to determine the prevalence of keel bone damages in layers raised in different production systems within Njoro Sub-County. The second aim of the project was to assess the knowledge of chicken farmers on KBD.  Samples were collected from chicken abattoirs. The keel bones were examined for deviations, fractures and general configuration. A total of 150 keel bones were examined. Findings revealed KBD is common with a prevalence of 65%, of which keel bone fractures account for 14% and deviations 51%. The results also suggested that production system had an influence on the occurrence of KBD. High incidences of deviations and fractures were observed in bones from birds reared in battery cages. A total number of 80 farmers answered a questionnaire and 77 of these (96%) were not aware of the existence of KBD.