ABSTRACTWe report the whole-genome sequence ofMucilaginibacter jinjuensistype strain KACC 16571, which was isolated from rotten wood in South Korea. The genome ofMucilaginibacter jinjuensisKACC 16571Tconsists of a 6.16-Mb circular chromosome, with a G+C content of 42.1% and 5,262 total predicted coding genes.