(February 8, 412 – April 17, 487 CE), surnamed "The Successor", was a Greek Neoplatonist philosopher.

Proclus Lycaeus (February 8, 412 – April 17, 485), surnamed "The Successor" or "diadochos" (Greek Próklos ho Diádokhos), was a Greek Neoplatonist philosopher, one of the last major Greek philosophers (see Damascius). His set forth one of the most elaborate, complex, and fully developed Neoplatonic systems. He stands near the end of the pagan Greek development of philosophy, and was extremely influential on later Christian (Greek and Latin) and Islamic thought.

Proclus or Proklos is the name of a historical figure who was Prefect of Constantinople under the reign of Theodosius the Great (r. 379-395). He was put to death in the tenth year of his reign. An epigram on the pedestal of an obelisk at the hippodrome of Constantinople records his success in setting the obelisk upright.Anthol.

Proclus is a young lunar impact crater located to the west of the Mare Crisium, on the east shore of the Palus Somni. It lies to the south of the prominent, terraced Macrobius crater, and west-northwest of the flooded crater Yerkes. Between Proclus and Yerkes, on the edge of the mare, are the Promontories named Olivium and Lavinium.