The Chamavi (variants Hamavi, Camoui) were a Germanic tribe that, for the most of their history, existed along the upper Rhine river.

Tacitus, in his 'Germania', writes that the Chamavi expelled the Bructerian tribe from their lands. Later, about 150 A.D. the geographer Claudius Ptolemy places them much farther east than Tacitus, near the Cherusci around the provinces of Thuringia and Anhalt. Ptolemy also mentions a people called the 'Chaemae' on the lower Rhine. The Chaemae and were probably the same as the Chamavi. Later in history, the Chamavi are mentioned by Ammianus Marcellinus, Gregory of Tours, and Eumenius as a tribe that made up the Franks. In the middle ages, there existed a province in the southern Netherlands called Hamaland, which was almost definitely named after the area's earler inhabitants, the Chamavi.