John Curtis (born 1960) is an American politician serving as the United States senator from Utah.

John Curtis or Curtiss may also refer to:

Politics John Curtis (burgess) (fl. 1659–1660), North American colonial British planter and politician John Curtis (English politician) (c. 1751–1813), English Member of Parliament for Wells, 1782–1784 and Steyning, 1791–1794 John Curtis (Irish politician) (died 1775), Irish politician John A. Curtis (1834–1913), member of the Virginia House of Delegates John E. Curtis (1915–1999), American politician from the state of Alaska

Sports John Curtis (baseball) (born 1948), American Major League Baseball pitcher John Curtiss (baseball) (born 1993), American Major League Baseball pitcher John Curtis (cricketer) (1887–1972), English cricketer John Curtis (footballer, born 1954), English former professional football player John Curtis (footballer, born 1978), English professional football player John Curtis (sailor) (born 1967), Canadian Olympic sailor

Religion John Curtis (bishop) (1880–1962), missionary bishop in China, 1929–1950 Barry Curtis (bishop) (John Barry Curtis, born 1933), retired Anglican bishop in Canada

Others John Curtis (entomologist) (1791–1862), English entomologist John Curtis (games designer), designer of the Rolemaster game systems John Curtis (painter) (), English landscape painter John Curtiss (Royal Air Force officer) (1924–2013), British Royal Air Force air marshal John C. Curtis (1845–1917), American Civil War soldier and Medal of Honor recipient John Green Curtis (1844–1913), American physiologist John Shelton Curtiss (1899–1983), American historian John Thomas Curtis (1913–1961), American botanist and plant ecologist

See also John Curtice (born 1953), British political scientist Jack Curtis (disambiguation) John Curteys (disambiguation)