James Sadler may refer to:
James Sadler (balloonist) (1753–1828), first English balloonist Sir James Hayes Sadler (1827–1910), British civil servant James Sadler (cricketer) (1830–1865), English cricketer Sir James Hayes Sadler (colonial administrator) (1851–1922), Colonial administrator, son of above James C. Sadler (1920–2005), American meteorologist James Robert Sadler, birth name of British actor Jerry Desmonde (1908–1967) James Sadler and Sons Ltd, English pottery manufacturer James Thomas Sadler (1837–?), English merchant sailor See also Jim Sadler (1886–1975), Australian rules footballer