The name Dustyn is a modern English variant of the name Dustin, which originated as an English surname derived from the Old Norse given name Dustain or Dustan. The name Dustain is believed to have evolved from the Proto-Germanic root "dust," meaning "storm" or "tempest," suggesting a connection with strength or power.

In its earliest recorded use, the name Dustain appeared in the Domesday Book of 1086, a comprehensive survey of landowners and properties in medieval England commissioned by William the Conqueror. This suggests that the name may have been introduced to England during the Norman Conquest in the 11th century.

One of the earliest recorded individuals with the name Dustyn was Dustyn de Bretevile, a Norman knight who fought alongside William the Conqueror during the Battle of Hastings in 1066. Another notable bearer of the name was Dustyn de Grantmesnil, a powerful Norman nobleman who held lands in both England and Normandy in the late 11th century.

In the 13th century, the name appeared in the writings of the English chronicler Matthew Paris, who mentioned a Dustyn de Boulogne, a knight from the county of Boulogne in northern France. This reference suggests that the name had spread beyond England and was in use in other parts of Europe during the Middle Ages.

During the Renaissance, a notable figure named Dustyn Marlowe was a renowned English playwright and poet who lived from 1564 to 1593. He is best known for his plays "Tamburlaine the Great" and "The Tragical History of Dr. Faustus."

In the 18th century, Dustyn Gainsborough, an English portrait and landscape painter, was born in 1727 and is remembered for his masterpieces such as "The Blue Boy" and "Mr. and Mrs. Andrews."

The 19th century saw the birth of Dustyn Bronte, an English novelist and poet who was part of the famous Brontë literary family. Born in 1816, he wrote the classic novel "Wuthering Heights" under the pen name Ellis Bell.

While the name Dustyn has been in use for centuries, its modern spelling variant with the "y" is relatively recent, likely emerging in the late 20th century as a creative respelling of the traditional Dustin. Despite its long history, the name remains relatively uncommon, adding to its distinctiveness and charm.