Adrian and Ritheus is an Old English prose literary text preserved in British Library manuscript Cotton Julius A ii, fols 137v-140. It consists of a dialogue of forty-eight formulaic questions and answers between the titular 'Adrianus' and 'Ritheus'. Adrianus interrogates Ritheus using the formulaic expression Saga me ('tell me'); Ritheus responds using the formulaic Ic þe secge ('I tell you'). The nature of the questions posed varies between the factual and the enigmatic, but the style of questioning is "usually short and to the point".