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The prevalence and risk factors for Campylobacterspp. colonization of broiler flocks and broiler carcass contamination in Greek slaughterhouses were investigated. Over a 14-month period, a pool of 10 ceca and 5 neck skin samples from chicken carcasses were collected from each of 142 batches of broiler flocks slaughtered in 3 different slaughterhouses. Information on potential risk factors for Campylobacterinfection in broilers was collected by an on-farm interview and linked according to the Campylobactercontamination status of broiler flocks and differences in farm characteristics and management practices identified from questionnaires. Campylobacterspp. was isolated from 73.94% and 70.42% of ceca (95% CI 65.92–80.94) and carcasses (95% CI 62.19–77.78), respectively. A significant correlation (p< 0.001) between the presence of Campylobacterspp. in broiler ceca and contamination of carcasses was found, suggesting the spread of the microorganism on the skin of carcasses during the slaughtering procedure. A multiple logistic regression showed the disinfection of the poultry house being conducted by unskilled personnel (odds ratio [OR] ¼ = 3.983) as a significant risk factor (p< 0.05) and the use of straw litter as bedding material (OR ¼ = 0.170) and closure of windows during the intervals of production cycles (OR ¼ = 0.396) as significant protective factors (p< 0.05) for broiler flock contamination. These results are important and help further the understanding of the epidemiology of Campylobacterspp. derived from poultry in Greece.