Diogenes

Which one?

Diogenes of Sinope (412–323 BC), the philosopher, better known as Diogenes the Cynic or simply Diogenes.
Diogenes of Apollonia or Diogenes Apolloniates (c. 460 BC), philosopher
Diogenes of Athens (tragedian) (late 5th century or early 4th century BC), writer of tragedies
Diogenes of Babylon or "Diogenes the Stoic" (c. 230 – c. 150 BC), Stoic philosopher from Seleucia, frequently confused with the following
Diogenes of Seleucia (Epicurean) (died 146 BC), Epicurean philosopher and adviser to King Alexander of Syria
Antonius Diogenes (2nd century BC), A Greek romance writer, most notable for his work The Wonders of Thule
Diogenes of Tarsus (2nd century BC), Epicurean philosopher
Diogenes of Judea (fl. c. 100–76 BC), general and advisor of Hasmonean king Alexander Jannaeus
Diogenes of Athens (sculptor) (late 1st century BC–early 1st century AD), sculptor who worked in Augustan Rome
Diogenes (explorer) (1st century AD), Greek merchant and explorer
Diogenes of Byzantium (114–129 AD), bishop of Byzantium
Diogenes of Oenoanda (2nd century AD), Epicurean
Diogenes Laërtius (between 200–500 AD), historian and philologist
Diogenes (bishop of Edessa) (d. 411/412)
Constantine Diogenes (died 1032), Byzantine general
Romanos IV Diogenes (died 1072), Byzantine emperor 1068–1071, son of Constantine Diogenes
Nikephoros Diogenes, Byzantine general, son of Romanos IV
Diogenes syndrome, a misnomer for a mental disorder

Diogenes of Sinope (412–323 BC), the philosopher, better known as Diogenes the Cynic or simply Diogenes.