James Plummer

James Plummer may refer to:


 * James Henry Plummer (1848–1932), Canadian financier
 * James Pratt Plummer, grandson of James W. Parker whose family were kidnapped by Native Americans
 * James W. Plummer (1920–2013), American director of the National Reconnaissance Office
 * James Ransom Plummer, mayor of Columbia, Tennessee
 * Jim Plummer, Canadian-born electrical engineer