- This article is about the daughter of Ptolemy VIII Physcon and Cleopatra III of Egypt. For the daughter of Cleopatra VII of Egypt and Roman Triumvir Mark Antony see Cleopatra Selene II.
Cleopatra Selene I (Greek:η Κλεοπάτρα Σελήνη) was queen consort to Ptolemy IX Lathyros of Egypt. She was the daughter of Ptolemy VIII Physcon and Cleopatra III of Egypt. She was married to Lathyros after her sister Cleopatra IV was pushed out by her mother. She was not made co-ruler, unlike the many sister-wives of Ptolemaic kings. She bore Lathyros Berenice III. She may have also wed Ptolemy X Alexander I later, possibly bearing him Ptolemy XI Alexander II.
