Outcast is a historical novel for children written by Rosemary Sutcliff and published in 1955. It takes place in Roman Britain and tells the tale of an orphaned Roman child who is shipwrecked on a coast of Dumnonia in Celtic Britain, outside of Roman rule. He is adopted by a childless couple, grows up within the tribe, eventually leaving to rejoin Roman society, and being carried along by a chain of events all the way to Rome and ultimately back to Britain. Like many Sutcliff novels, the plot is driven by the protagonist's search for identity amidst several cultures in which he feels himself to be an outcast.