Two novel, Gram-positive, motile, coccal bacteria, strains L1b-$b9^T$ and B5a-b5, were isolated from a potato cultivation field in Ochang, Korea. These isolates grew at $10-45^{circ}C$, pH 5.0-10.0, and in the presence of 8% (w/v) NaCl. The diagnostic diamino acid in the cell-wall peptidoglycan was meso-diaminopimelic acid. The major menaquinone was MK-8($H_4$) and the main cellular fatty acids were iso-$C_{14:0}$, iso-$C_{15:0}$, and anteiso-$C_{15:0}$. Polar lipids in strain L1b-$b9^T$ consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, and an unknown glyco-amino lipid. The G+C content of genomic DNA was 73.6 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strains L1b-$b9^T$ and B5a-b5 shared 99.36% similarity and formed a robust clade with the type species of the genus Phycicoccus. Strain L1b-$b9^T$ is related most closely to Phycicoccus cremeus $V2M29^T$ (97.52% 16S rRNA gene sequence similarity). On the basis of phylogenetic characteristics, the name Phycicoccus ochangensis sp. nov. is proposed for strain LIb-$b9^T$ (=KCTC $19694^T$ =JCM $17595^T$).