The Archaeological Park of Dion is the most important archaeological site at Mount Olympus in Greece, located in Dion (Greek: Δίον). In the area comprised by the Archaeological Park of Dion, sanctuaries were found from the Hellenistic and Roman periods. The park displays the importance of ancient Dion in the history of Pieria.

The park has an area of 150 hectares, of which nearly 50 hectares belong to the urban area and 50 hectares to the sanctuaries. The other area has not yet been explored archaeologically. In the former urban area residential buildings, a market square, public buildings, churches, bathhouses, shops, workshops and toilets have been found. The sanctuaries, the theaters and the cemetery are located outside the city.

Half a kilometer west of the archaeological park, in the modern village of Dion, is the archaeological museum, built in 1983. Here the finds of ancient Dion and other archaeological places are exhibited. On the first floor there are also exhibits from Pydna and other archaeological sites of Pieria. In a small cinema, visitors will be audiovisual informed about Dion.

The building was erected directly behind the museum on the western side, specifically for the exhibition of the Dionysos mosaic. On the upper floor, a gallery is arranged around the mosaic so that the visitor can view it from all perspectives. In showcases recently found exhibits are displayed.