Bindus was the principal divinity of the Iapodes, an Illyrian people of the upper valley of the river Una in the mountainous hinterland of Dalmatia. He was a god of springs and running waters, and his chief sanctuary lay at the karst spring of Privilica near Bihać (in present-day Bosnia and Herzegovina). There the leading men of the tribe, styled praepositi et principes, dedicated a series of votive altars to him after the Roman conquest, and his cult was harmonised with that of the Roman sea-god under the compound name Bindus Neptunus, with dedications featuring dolphins and the trident. At least eleven votive monuments to the god are known from Privilica, some set up by Romanised native chieftains in Flavian times and others by soldiers in the third century. Illyrian colonists carried his cult abroad: at the gold-mining town of Alburnus Maior in Roman Dacia, the indigenous Neptune is best understood as an interpretatio of this autochthonous god of waters.