ABSTRACT: Disseminated mucormycosis is a rare, life-threatening disease generally seen in immunocompromised patients. We report the case of a 34-year-old alcoholic man who presented to the hospital with abdominal pain, chills, and hypotension and subsequently passed 2 weeks later. Postmortem examination showed multiorgan necrosis and infarction. The stomach mucosa was notable for an encompassing, granular, yellow-tinged, velvety pseudomembrane. Histopathologic examination showed lungs, spleen, stomach, and kidneys with angioinvasive branching fungal hyphae, which was confirmed as Mucorales species through metagenomic sequencing. To our knowledge, this is the first reported case of pseudomembranous gastritis secondary to mucormycosis.