Robert Devereux, 3rd Earl of Essex, English general and politician, Lord Lieutenant of Staffordshire (born 1591)

Robert Devereux, 3rd Earl of Essex, KB, PC was an English Parliamentarian and soldier during the first half of the 17th century. With the start of the Civil War in 1642, he became the first Captain-General and Chief Commander of the Parliamentarian army, also known as the Roundheads. However, he was unable and unwilling to score a decisive blow against the Royalist army of King Charles I. He was eventually overshadowed by the ascendancy of Oliver Cromwell and Thomas Fairfax, and resigned his commission in 1646.

This is a list of people who have served as lord lieutenant for Staffordshire. Since 1828, all lord lieutenants have also been custos rotulorum of Staffordshire.