Ptolemaeus (disambiguation)
# Ptolemaeus (disambiguation)

Ptolemaeus may refer to:

* Ptolemy, a Greek mathematician, astronomer, geographer and astrologer, and things named for him:
   * Ptolemaeus (lunar crater)
   * Ptolemaeus (Martian crater)
   * 4001 Ptolemaeus, a Florian asteroid
* Ptolemaeus of Commagene, a satrap of Commagene
* Ptolemy (name), including a list of people with the name
