James Stapleton Roy (Chinese: 芮效俭; pinyin: Ruì Xiàojiǎn; born June 16, 1935) is a former senior United States diplomat specializing in Asian affairs. A fluent Chinese speaker, Roy spent much of his career in East Asia, where his assignments included Bangkok (twice), Hong Kong, Taipei, Beijing (twice), Singapore, and Jakarta. He also specialized in Soviet affairs and served in Moscow at the height of the Cold War. Ambassador Roy served as Assistant Secretary of State for Intelligence and Research from 1999 to 2000.