Stadium of Nemea, Ancient stadium and archaeological site in Nemea, Greece

The Stadium of Nemea is an ancient running track cut into the ground about 450 m southeast of the Temple of Zeus, oriented north-south. Its track, the stadion, measures 178 m and is marked by a stone water channel and a starting line with 12 lanes. Spectators sat on grassy slopes around the track, while a vaulted tunnel over 36 m long on the west side served as the athletes' entrance.

The site was built around 330 BC and served as the main venue for the Nemean Games, one of ancient Greece's major athletic festivals. It played an important role for centuries in maintaining competition traditions across the ancient world.

The stadium's running event, the stadion, gave its name to the building itself, and the Latin word stadium is a reworking of the Greek stadion. In the early years of the Nemean Games, between 776 and 724 BC, the stadion was the only contest, and its winner took the whole of the games.

The grounds are easy to walk through and most areas are freely accessible for exploration. The best time to visit is early morning or late afternoon when the sun is lower and details are easier to see.

The vaulted entrance tunnel, dated to about 320 BC and over 36 m long, resembles the vaults of Macedonian tombs. The track itself measured 178 m, shorter than Olympia's 192.27 m, because the stade equaled 600 feet of a locally varying length.