Sulfurovum lithotrophicum is a species of bacteria, the type species of its genus. It is a sulfur-oxidizing chemolithoautotroph within the õ-Proteobacteria isolated from Okinawa Trough hydrothermal sediments. It is mesophilic and also oxidises thiosulfate. It is a gram-negative, non-motile and coccoid to oval-shaped bacterium. The type strain is 42BKT<sup>T</sup> (=ATCC BAA-797<sup>T</sup> =JCM 12117<sup>T</sup>).