Lake Constance Belt Railway (German: Bodenseegürtelbahn) is the name used for several contiguous railway lines, either around the entire Upper Lake of Lake Constance (Bodensee) or only along its northern shore.[1][2][3] It was coined around 1900, when the trinational railway ring around the lake (Konstanz–Radolfzell–Friedrichshafen–Lindau–Bregenz–Rorschach–Romanshorn–Konstanz) was completed, but today the term is only used for the line from Radolfzell to Lindau in southern Germany.