Ancient Greek explorers

Pytheas of Massalia (; Ancient Greek: Πυθέας ὁ Μασσαλιώτης Pythéās ho Massaliōtēs; Latin: Pytheas Massiliensis; born 350 BC, 320–306 BC) was a Greek geographer, explorer and astronomer from the Greek colony of Massalia (modern-day Marseille, France). He made a voyage of exploration to Northern Europe in about 325 BC, but his account of it, known widely in antiquity, has not survived and is now known only through the writings of others.

Megasthenes ( ; , died 290 BCE) was an ancient Greek historian, indologist, diplomat, ethnographer and explorer in the Hellenistic period. He described India in his book Indica, which is now lost, but has been partially reconstructed from literary fragments found in later authors that quoted his work. Megasthenes was the first person from the Western world to leave a written description of India.

Nearchus or Nearchos (; – 300 BC) was one of the Greek officers, a navarch, in the army of Alexander the Great. He is known for his celebrated expeditionary voyage starting from the Indus River, through the Persian Gulf and ending at the mouth of the Tigris River following the Indian campaign of Alexander the Great, in 326–324 BC.

Greek explorer and writer of the late 6th and early 5th centuries BCE

Greek navigator and geographer

Euthymenes of Massalia (; Euthymenēs ho Massaliōtēs; fl. early sixth century BCE) was a Greek explorer from Massalia (modern Marseille), who explored the coast of West Africa as far, apparently, as a great river, of which the outflow made the sea at its mouth fresh or brackish.

admiral of Alexander the Great

thumb|Hippalus is credited by the Periplus of the Erythraean Sea|Periplus of the Erythreaen Sea as the first to discover the passage from the [[Red Sea to India over the Indian Ocean]]

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Ancient Macedonian general and geographer

Demodamas () (flourished in the 3rd century BC), was a Seleucid official of the 3rd century BC. Demodamas was born in Miletus, and was the son of Aristides. He served as a general of the Seleucids under Seleucus I Nicator and Antiochus I Soter. Around 294–293 and 281–280 BC, Demodamas served as the satrap of the Seleucids in Bactria and Sogdiana. At the time, he undertook military expeditions across the Syr Darya to explore the lands of the Scythians, during which he traveled further to the north than any Greeks before him, with the possible exception of Alexander the Great. During the expedit

Macedonian naval officer under Alexander the Great