Campylobacter coli is an important foodborne pathogen that can cause inflammation of the intestine and diarrhea in humans. The complete genomes, including megaplasmids, of C. coli strains YH501, YH503, and YH504 from retail chicken were sequenced and de novo assembled. Whole-genome analysis revealed a number of virulence and antibiotic resistance genes, suggesting significant potential for these poultry-originating isolates to cause human disease.