thumb|right|Approximate location of the Bisaltai|306x306px
The Bisaltae () were a Thracian people on the lower Strymon river, who gave their name to Bisaltia, the district between Amphipolis and Heraclea Sintica (the modern village of Rupite, Bulgaria) on the east and Crestonice on the west. They also made their way into the peninsulas of Acte and Pallene in the south, beyond the river Nestus in the east, and are even said to have raided Cardia.
According to mythology, they were the descendants of Bisaltes, the son of Helios and Gaia (the personifications of the Sun and Earth), after whom they were named.
Between the 470s and 450s BC they issued large silver coins, which depict a naked horseman standing next to a horse and wearing a petasos hat, and the name of the tribe in the Parian-Thasian alphabet. These coins weighed 29 grammes each and were by far the largest of a number of similar coins issued by Macedonian and Thracian tribes in this period, numbering perhaps half a million coins (ca. 14,500 kilogrammes of silver). The source of the silver was probably a silver mine at Lake Prasias, near Mount Dysorum, which is mentioned by Herodotus. Under a separate king at the time of the Persian Wars, they were annexed by Alexander I (498 BC-454 BC) to the kingdom of Macedon. He continued to mint coinage from the silver mine at Lake Prasias, using the same coinage designs as the previous Bisaltian coinage.