Oceanobacillus iheyensis is a bacterium, the type species of its genus. It is a deep-sea species, having been isolated from a depth of , and is extremely halotolerant and alkaliphilic. Its type strain is HTE831 (JCM 11309<sup>T</sup>, DSM 14371<sup>T</sup>). Oceanobacillus iheyensis HTE831 is an alkaliphilic and extremely halotolerant Bacillus-related species isolated from deep-sea sediment.