The Banochaemae, Baenochaemae, Bainochaimai or Bonochamae were a Germanic tribe recorded only in the Geography of Claudius Ptolemy.
The name is generally considered to be equivalent to the modern term "Bohemian" in its origins, although this does not mean that this people is ancestral to the modern Bohemians, nor speaking an ancestral language, nor living in Bohemia. Rather the name represents a combination of the more ancient tribal name of the Boii, and the Germanic word found in modern German , or English "home". (The Boii's name is also found in "Bavaria", and they had lived in a large regions encompassing both of the modern regions, plus parts of modern Moravia, Hungary, Lower Austria and northern Italy. The Italian city of Bologne, Latin Bononia is named after them.)
During Roman imperial times a part of the general area of the modern Czech republic had been settled by Suebian Germanic tribes, most notably the Marcomanni under King Marobodus. Around 100 AD Tacitus reported that in the area once inhabited by the Boii, north of the Danube, south of the Main river, east of the old territory of the Helvetii, and west of the Hercynian forest: "The name Boiemum still survives, marking the old tradition of the place, though the population has been changed."
Strabo wrote that in the south of Germany, among the hills or mountains north of the Danube (which are not yet as big as the Alps further south)...