班公错（拉达克语：Pangong Tso），藏语名哥木克哥那喇令错，或错木昂拉仁波（藏文：མཚོ་མོ་ངང་ལྷ་རིང་པོ།，威利：mtsho mo ngang lha ring po，THL：Tsomo Nganglha Ringpo），是青藏高原西部的一座湖泊，位于**和克什米尔边境，中国和印度对该湖归属有争议，现中国控制该湖东部约三分之二，印度控制西部约三分之一。

班公错属构造性湖泊，东西狭长，约延伸143公里，南北最宽处约5公里，总面积604平方公里。该湖湖面平均海拔4241米，属内流湖，流域面积28714平方公里。由三个狭长形小湖组成，其间有沟通水道。湖最深处约57米。

Pangong Tso (*****: སྤང་གོང་མཚོ, Wylie: spang gong mtsho; Hindi: पांगोंग त्सो; Chinese:班公错; pinyin:Bāngōng Cuò), ***** for "high grassland lake", also referred to as Pangong Lake, is an endorheic lake in the Himalayas situated at a height of about 4,350 m (14,270 ft). It is 134 km (83 mi) long and extends from India to China. Approximately 60% of the length of the lake lies in China. The lake is 5 km (3.1 mi) wide at its broadest point. All together it covers 604 km. During winter the lake freezes completely, despite being saline water. It is not part of Indus river basin area and geographically a separate land locked river basin.