James J. Blanchard (born 1942) is an American politician and former diplomat.
James Blanchard may also refer to:
James Blanchard (scientist), Canadian physician and professor James Blanchard (Canadian politician) (1876–1952), politician in Ontario, Canada James U. Blanchard III (1943–1999), American dealer in coins and rare metals James W. Blanchard (1903–1987), American submarine commander in the Pacific during World War II