Thomas Holland, 1st Duke of Surrey

Thomas Holland, 1st Duke of Surrey, 3rd Earl of Kent, 4th Baron Holland, KG, Earl Marshal (1374 – 7 January 1400) was an English nobleman.

He was the son of the 2nd Earl of Kent and Lady Alice FitzAlan. His maternal grandparents were the 10th Earl of Arundel and Lady Eleanor of Lancaster. He was also a nephew of King Richard II, and a Knight of the Garter.

On his father's death in 1397 he succeeded him as 3rd Earl of Kent and 4th Baron Holland. At that time Kent's uncle King Richard II was removing the and his associates from power, and sent Kent to arrest his own uncle, the Earl of Arundel. In reward he received a share of the forfeited estates, and on 29 September 1397 was created Duke of Surrey. Another uncle, the Earl of Huntingdon, was created Duke of Exeter on that day as well.

Surrey, along with many of King Richard II's advisors, was arrested after the King's deposition by King Henry IV in 1399. In the end he had to forfeit the honours and estates he had gained after the arrests of Gloucester and Arundel, in particular the Dukedom of Surrey, although he retained the Earldom of Kent.

Early in 1400, Kent, along with his uncle, the Earl of Huntingdon (no longer Duke of Exeter), plotted to kill King Henry IV and free King Richard II from prison and return him to the throne. This "Epiphany Rising" failed and Kent was captured and executed.

He left no children by his wife, Lady Joan Stafford, daughter of the 2nd Earl of Stafford. He was succeeded as Earl of Kent by his brother Edmund.