James, Jim, or Jamie Mayer may refer to:
James M. Mayer (born 1958), American inorganic chemist James W. Mayer (1930–2013), American applied physicist James Mayer (spy) (1920–1944), Mauritian secret agent during World War II Jim Mayer (musician) (born c. 1961), American guitarist, singer-songwriter, and producer James Erskine Mayer (1889–1957), American baseball player with the Philadelphia Phillies, the Pittsburgh Pirates, and the Chicago White Sox Jamie Mayer (born 1977), Scottish former professional rugby player Jim Mayer (ice hockey) (born 1954), Canadian ice hockey player
See also James Mayer de Rothschild (1792–1868), German-French banker and the founder of the French branch of the Rothschild family Mayer (name) James Meyer (disambiguation) James Myer (born 1951), American filmmaker