|This article is about the Greco-Egyptian geographer. For other uses, see Ptolemy.|
Claudius Ptolemy (c. 100 – c. 170) was a Greco-Egyptian mathematician, astronomer, geographer, astrologer, and poet who also held Roman citizenship. He is best remembered for his Geography, an authorative treatise on the matter.
- Assassin's Creed: Revelations (mentioned only)