Malignant melanoma of the oral cavity is a rare tumor that occurs due to the uncontrolled growth of melanocytes found in the basal layer of the oral mucous membranes. Majority of the oral melanomas occur in maxilla, especially on keratinizing mucosa of the palate and gingiva. Clinically oral melanomas have different types like pigmented nodular type, pigmented macular type, pigmented mixed type, non-pigmented nodular type and non-pigmented mixed type. Here, we present a case report on 57 year old female patient with oral mucosal malignant melanoma.