John Winthrop (1587/8–1649) was the founding governor of the Massachusetts Bay Colony.

John Winthrop may also refer to:

  • John Winthrop the Younger (1606–1676), colonial governor of Connecticut
  • John Winthrop (educator) (1714–1779), early American astronomer and professor at Harvard College
  • John Winthrop (Greenough), a marble statue of the Massachusetts governor by Richard Saltonstall Greenough

See also

  • Fitz-John Winthrop (1637–1707), soldier and colonial governor of Connecticut
  • Jonathan Winthrop, a character in Passions