Ptolemaic is the adjective formed from the name Ptolemy, and may refer to:
Pertaining to the Ptolemaic dynasty
edit- Ptolemaic dynasty, the Macedonian Greek dynasty that ruled Egypt founded in 305 BC by Ptolemy I Soter
- Ptolemaic Kingdom
Pertaining to a certain ancient writer
edit- Relating to Ptolemy, 2nd-century AD geographer and astronomer/astrologer
- Ptolemaic system, a geocentric model of the universe developed in detail by the astronomer Claudius Ptolemaeus