John Proby may refer to:
John Proby (died 1710), MP for Huntingdonshire John Proby (died 1762), MP for Huntingdonshire and Stamford John Proby, 1st Baron Carysfort, British politician, son of the above John Joshua Proby, 1st Earl of Carysfort, British politician, son of the above John Proby, 2nd Earl of Carysfort, British soldier and politician, son of the above