Basilides () was a Christian gnostic who taught in Alexandria from 117 to 138 AD.
Basilides or Basileides may also refer to:
Basilides the Epicurean, (250 – c. 175 BC), philosopher Basilides of Tyre, mathematician Basilides (Stoic) (2nd century BC), philosopher Basilides, possibly fictional 1st-century Roman prophet, and subject of The Prophecy of Basilides Basilides of Scythopolis (fl. 150), teacher of Marcus Aurelius Basilides and Potamiana (died c. 205), Christian martyrs now venerated as saints Basilides (bishop of Ptolemais), 3rd century bishop and correspondent of Pope Dionysius of Alexandria Basilides, Cyrinus, Nabor and Nazarius (died c. 303), Catholic saints Basilides (patricius), (c. 527–565) Byzantine official who helped the emperor Justinian I compile the Corpus Juris Civilis Basilides (grammarian), grammarian of the late antique period Fasilides or Basilides (1603–1667), emperor of Ethiopia Mária Basilides, (1886–1946), Hungarian contralto singer
See also Gospel of Basilides, a text within the New Testament apocrypha