The occipitomastoid suture refers to the joint formed by the meeting of two bones at the base of the skull, the occipital bone and the temporal bone. It is also known as the occipitotemporal suture, occipitotemporal articulation, or the occipitotemporal syndesmosis. This suture is an important landmark in anatomy, particularly in neurosurgery and anthropology. Its name may vary depending on the context in which it is used, but all of the terms refer to the same structure. Knowing these synonyms can help professionals communicate more effectively when discussing this region of the skull.