Marquess of Buckingham may refer to:
George Villiers, 1st Duke of Buckingham (1592–1628) Marquess of Buckingham from 1618 until elevated to Duke of Buckingham in 1623
George Nugent-Temple-Grenville, 1st Marquess of Buckingham (1753–1813), created Marquess of Buckingham in 1784
Richard Temple-Nugent-Brydges-Chandos-Grenville, 1st Duke of Buckingham and Chandos (1776–1839) Marquess of Buckingham from 1813 until elevated to Duke of Buckingham in 1822
