Aristippus of Cyrene (/ˌærəˈstɪpəs/; Greek: Ἀρίστιππος; c. 435 – c. 356 BCE) was the founder of the Cyrenaic school of Philosophy. He was a pupil of Socrates, but adopted a very different philosophical outlook, teaching that the goal of life was to seek pleasure by adapting circumstances to oneself and by maintaining proper control over both adversity and prosperity. Among his pupils was his daughter Arete.
There are indications that he was conflated with his grandson, Aristippus the Younger.
Aristippus, the son of Aritades, was born at Cyrene, Ancient Libya, c. 435 BC. He came over to Greece to be present at the Olympic games, where he inquired Ischomachus about Socrates, and by his description was filled with so ardent a desire to see Socrates, that he went to Athens for the purpose, and remained with him almost up to the time of his execution, 399 BC. Diodorus dates him to 366 BC., which agrees very well with the facts known about him, and with the statement, that Lais, the courtesan with whom he was intimate, was born 421 BC.
Aristippus may refer to: