Tang Erho (simplified Chinese: 汤尔和; traditional Chinese: 湯爾和; pinyin: Tāng Ěrhé; Wade-Giles: T'ang Er-ho, 1878 - November 8, 1940) was a medical doctor and politician in the Chinese Beiyang government, later noted for his role as in the collaborationist Provisional Government of the Republic of China.