Marmon may refer to:

People Jacky Marmon (c. 1798–1880), Australian sailor Daniel W. Marmon (1844–1909), American industrialist Susie Rayos Marmon (1877–1988), Native American educator, historian, and storyteller Lee Marmon (1925–2021), Native American photographer and author Neale Marmon (born 1961), former English footballer Kent Marmon, American politician

Companies Nordyke Marmon & Company, a US manufacturer of flour mills until the 1920s Marmon Motor Car Company, a US manufacturer of automobiles until 1933 Marmon-Herrington, the successor company to the Marmon Motor Car Company Marmon Group, a Chicago, Illinois industrial company Marmon Motor Company, a defunct Texas-based manufacturer of premium trucks