A non-motile, red-pigmented bacterium, designated strain HMD1010(T), was isolated from an artificial lake located within the campus of Hankuk University of Foreign Studies, Yongin, Korea. A phylogenetic tree based on 16S rRNA gene sequences showed that strain HMD1010(T) formed a lineage within the genus Hymenobacter and was closely related to the type strains of Hymenobacter rigui (96.7 % sequence similarity) and H. gelipurpurascens (95.6 %). The major fatty acids were C(16 : 1)ω5c (21.9 %), summed feature 3 (iso-C(15 : 0) 2-OH and/or C(16 : 1)ω7c; 17.2 %), iso-C(15 : 0) (14.5 %) and summed feature 4 (anteiso-C(17 : 1) B and/or iso-C(17 : 1) I; 11.9 %). The DNA G+C content was 60.4 mol%. On the basis of the evidence presented in this study, strain HMD1010(T) represents a novel species of the genus Hymenobacter, for which the name Hymenobacter yonginensis sp. nov. was proposed. The type strain is HMD1010(T) ( = KCTC 22745(T) = CECT 7546(T)).