James Dyer (1510–1582) was a judge and Speaker of the House of Commons.
James Dyer may also refer to: James E. Dyer (1946–2011), American politician James Dyer (cricketer) (1809–1876), English cricketer Jimmy Dyer (1883–1971), footballer Jim Dyer, member of the Colorado Senate from the 26th district, followed by Steve Ward James Dyer, a character in Londyńczycy
See also John James Dyer (1809–1855), United States federal judge in Iowa