Oral melanocytic nevi are rare and benign tumors arising from melanocytes located in the oral mucosa. These lesions are clinically asymptomatic and often discovered during a dental consultation . All melanocytic proliferations are not benign and an histological examination have to be performed to rule out malignancy and adjust the treatment and the follow-up. Herein, we presented the case of a 23-year-old-Asian woman with an asymptomatic pigmented lesion on the hard palate discovered during a dental consultation. The lesion was excised and sent to the anatomopathological laboratory and turned out to be a blue nevus, a particular subtype of nevus.