The name Tryston is of English origin and derives from the Old English given name Tristan, which itself is derived from the Brythonic word "tristo" meaning "tumult" or "sorrowful outcry." The name rose to prominence with the legend of Tristan and Iseult, a tragic romance tale that dates back to the late 12th century.

In the medieval Arthurian legends, Tristan is a knight of the Round Table and one of the tragic heroes of the tale. The story is believed to have originated in the oral tradition of Brittany and was later written down in various versions across Europe during the medieval period.

The earliest recorded use of the name Tristan can be found in the 12th century French romance "Tristan" by the Norman poet Béroul. Another notable work featuring the name is the 13th century Middle English poem "Sir Tristrem," which is considered one of the earliest examples of English literature.

Throughout history, there have been several notable individuals who bore the name Tryston or its variations. One such figure was Tristram Coffin (1609-1681), a prominent early settler of Nantucket Island in colonial Massachusetts. Another was Tristram Shandy (1767-1833), the fictional character and the anti-hero of Laurence Sterne's influential novel "The Life and Opinions of Tristram Shandy, Gentleman."

In the 19th century, the American author Tristram Dalton (1738-1817) wrote several biographies and memoirs, while Tristram Burges (1770-1853) was a prominent English barrister and Member of Parliament. More recently, Tristram Cary (1925-2008) was a renowned English composer and pioneer of electronic music.

While the name Tryston is not as common as its variants, it has been used throughout history, often drawing inspiration from the legendary Tristan character and the rich literary tradition surrounding him. The name continues to be used today, carrying with it a sense of romantic tragedy and medieval chivalry.