Listeria spp. es un género bacteriano que contamina alimentos de origen animal, incluido el pollo, yl puede permanecer viable durante las cadenas de producción y distribución. En el presente trabajo se analizaron 91 muestras de carcasas de pollo, obtenidas en una distribuidora en el nororiente de Bogotá; las muestras se tomaron en un período de 9 semanas y luego fueron procesadas. De las 91 carcasas, 40 (43.95%) resultaron positivas para Listeria spp. La presencia de este microorganismo puede estar asociada a deficiencias en los sistemas de tecnología de limpieza en las plantas de beneficio y/o contaminación con utensilios durante el desprese.Incidence of Listeria spp., in frozen poultry carcasses at supermarket in northwest Bogotá Listeria spp. it is a bacterial gene that contaminates foods of animal origin including poultry, where it can remain viable during the chains of production and distribution. In this work, 91 samples of chicken carcasses were analyzed; they were obtained in a distributor in northwest Bogota. The samples were taken in a period of 9 weeks and processed shortly thereafter. From the 91 carcasses, 40 (43.95%) were positive for Listeria spp. The presence of this microorganism can be associated to deficiencies in the systems of cleaning technology in the poultry factory and/or contamination with utensils during cut-up.