John Mercer
John Mercer is the name of the following people:
- John Mercer, Baron von Aldie (1300–1379 / 1380), Scottish nobleman and merchant
- John Mercer (chemist) (1791–1866), English textile engineer
- John Mercer (Author) (1934–1982) British archaeologist and writer
- John Francis Mercer (1759–1821), American politician
- John H. Mercer (1922-1987), glaciologist
See also:
- Johnny Mercer ( John Herndon Mercer ; 1909–1976), American composer, singer and songwriter
