Sir Richard Trevor (1558–1638) was a Welsh landowner, soldier and politician. He was the eldest son of John Trevor of Trevalyn Hall, Denbighshire. He was the elder brother of Sir John Trevor, Sir Thomas Trevor and Sir Sackville Trevor. He inherited the Trevor family estate of Trevalyn in Denbighshire on the death of his father in 1589. He married Katherine, daughter of Roger Puleston of Emral; they had four daughters. Trevalyn was bequeathed to his nephew, Sir John Trevor.