Robert Pierrepont

Robert Pierrepont is the name of:
 * Robert Pierrepont, 1st Earl of Kingston-upon-Hull (1584–1643), English nobleman
 * Robert Pierrepont (MP) (c 1638–1681), Member of Parliament for Nottingham
 * Robert Pierrepont, 3rd Earl of Kingston-upon-Hull (1660–1682), English peer