Annianus of Alexandria or Annianos was a monk who flourished in Alexandria during the bishopric of Theophilus of Alexandria around the beginning of the fifth century. He criticized the world history of his contemporary monk Panodorus of Alexandria for relying too much on secular sources rather than biblical sources for his dates. None of Annianus' writings has survived; he is known only from the discussion of his works by George Syncellus during the ninth century.