This case report deals with the case of an 86-year-old man who was admitted to our hospital with an submandibular swelling after mastectomy for breast cancer one and a half year ago. Histopathological examination after surgical resection evaluated metastasis of a mixed-type breast carcinoma. Further treatment was palliative chemotherapy. This is the first description of a male breast carcinoma metastasis located in the submandibular region.