James Mercer

James Mercer may refer to:


 * James Mercer (judge) (1736–1793), American jurist, Virginia delegate to Continental Congress
 * James Mercer (Australian politician) (1842–1925), New South Wales politician
 * James Mercer (mathematician) (1883–1932), English mathematician
 * James Mercer (musician) (born 1970), American guitarist and musician
 * Bert Mercer (James Cuthbert Mercer, 1886–1944), New Zealand aviator
 * James Mercer (diplomat), former Ghanaian ambassador to Israel and chairman of Ghana Airways
 * James Mercer (poet) (1734–1804), Scottish soldier and poet