Pinnata Castra (Ancient Greek: Πτερωτον Στρατοπεδον, Pteroton Stratopedon)[1] was a settlement located in the north of the island of Great Britain, featuring in Ptolemy's 2nd century Geography as one of the four places listed as belonging to the Vacomagi tribe.[2] It is also included as Pinnatis in the Ravenna Cosmography.[1]