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 inherited the Trevor family estate of Trevalyn in Denbighshire on the death of his father in 1589.
Trevor was knighted in 1597, while on military service in Ireland, and, like his younger brothers Sackville Trevor and John Trevor, he enjoyed the patronage of Charles Howard, 1st Earl of Nottingham.
Trevalyn was bequeathed to his nephew, Sir John Trevor.