- For other uses of the name Diomedes, see Diomedes (disambiguation).
Diomedes is a figure in Greek mythology and one of the central characters of the Iliad. The son of King Tydeus and Queen Deipyle, Diomedes was considered the bravest of all the Greek warriors and served as the commander of the Argive contingent during the Trojan War.
King of Argos, Diomedes fought on the side of the Greeks during the Trojan War. He was one of Helen's suitors, and brought a total of 80 ships set to sail for Troy. Both skilled and courageous, Diomedes was one of the favorites of Athena and was able to wound two Olympians in a single day: Aphrodite when she was rescuing her son Aeneas, and Ares with some assistance by Athena. Alongside Ajax the Greater, he was considered to be one of the greatest of the Achaean warriors in terms of battle prowess, second only to Achilles. The youngest of the Achaeans, Diomedes was frequently paired with Odysseus to take part in more covert missions such as scouting and information gathering. Additionally, he was one of many warriors to sneak into Troy in the Trojan Horse. After the war, Diomedes returned to Argos and later moved to Italy, where he founded ten or more cities.
- Diomedes' father, Tydeus, was one of the Seven Against Thebes.