In Greek mythology, Hopleus (Ancient Greek: Ὁπλεύς) was the name of the following figures:
- Hopleus, an Arcadian prince as one of the 50 sons of the impious King Lycaon either by the naiad Cyllene,[1] Nonacris[2] or by unknown woman. He and his brothers were the most nefarious and carefree of all people. To test them, Zeus visited them in the form of a peasant. These brothers mixed the entrails of a child into the god's meal, whereupon the enraged Zeus threw the meal over the table. Hopleus was killed, along with his brothers and their father, by a lightning bolt of the god.[3]
- Hopleus, a Thessalian prince as the son of Poseidon and princess Canace, daughter of King Aeolus of Aeolia. He was the brother of Aloeus, Epopeus, Nireus and Triopas.[4]
- Hopleus, one of the Lapiths who fought against the Centaurs.[5]
- Hopleus, a soldier in the army of the Seven against Thebes and a comrade of Tydeus. He was killed by Aepytus.[6]