The Chamb (German: Chamb; Czech: Kouba) is a river in the Czech Republic and in Germany. It is a 51 kilometres (32 mi) right tributary of the Regen River.The Chamb begins south of the Czech village of KdynÄ›, and flows some 6 kilometres (3.7 mi) westward, crossing into Germany at an elevation of 407 metres (1,335 ft).