James C.H. Shen (Chinese: 沈劍虹; pinyin: Shěn Jiànhóng; Wade–Giles: Shen Chien-hung; July 2, 1909 Shanghai – July 12, 2007 Taipei) was a Taiwanese diplomat. Shen served as the last official Republic of China ambassador to the United States before the U.S. switched its diplomatic recognition to the People's Republic of China in 1979.