Backgrounds The ionizing radiation from the gamma rays is damaging the genetic materials of the cells, possibly leading to cell death and cause permanent changes within daughter cells. A red pigmented, Gramnegative, aerobic, short-rod shaped, non-motile, UV and gamma radiation tolerant bacterium Nibribacter radioresistens DG15C was isolated from a soil sample collected in a rice field in South Korea. Methods The complete genome of DG15C was sequenced and assembled using Pacific Biosciences RS II system. The genome sequence was annotated using Genomes-Expert Review (IMG-ER) platform, Prodigal, and JGI GenePRIMP pipeline. The protein-coding genes were identified using Prodigal, Pfam and COG databases implemented in the IMG systems. Results The complete genome sequence of strain DG15C consists of a circular chromosome (4,143,738 bp) encoding 3,969 coding sequences (CDs) and 3,582 genes. The bacterium showed resistance to gamma and UVC radiations. Conclusion The genome annotation as confirmed the presence of gene clusters involved in the toxicity resistance of radiation.