The name Mervin has its origins in the Old English language, stemming from the combination of the words "mere" meaning "famous" and "wine" meaning "friend". This suggests that the name was originally intended to convey the meaning of "famous friend" or "renowned companion".

The earliest recorded instances of the name date back to the late 9th century, during the Anglo-Saxon period in England. It was primarily used among the nobility and upper classes, indicating a level of prestige associated with the name.

One of the earliest known bearers of the name was Mervin of Mercia, a minor nobleman who lived in the late 10th century. His name is mentioned in several historical records from that era, though little else is known about his life and accomplishments.

In the 12th century, the name gained some prominence with the rise of Mervin de Lacy, a Norman knight and military commander who played a significant role in the Norman conquest of Ireland. He was granted extensive lands in County Meath and established the de Lacy dynasty, which wielded considerable power and influence in Ireland for several centuries.

During the Middle Ages, the name Mervin appeared in various literary works, including the epic poem "Beowulf" and the writings of the renowned poet Geoffrey Chaucer. This suggests that the name had gained a certain level of cultural significance and recognition within medieval English society.

In the 16th century, one of the most notable figures bearing the name was Mervin Touchet, Earl of Castlehaven, an English nobleman who served as a military commander during the English Civil War. Despite initially supporting the Royalist cause, he later switched allegiances and fought for the Parliamentarian forces.

Another historical figure of note was Mervin Alastair, a Scottish philosopher and scholar who lived in the late 17th century. He is best known for his influential work "Treatise on the Nature of Reason", which explored the intersection of rationality, ethics, and metaphysics.

In the 19th century, the name resurfaced with Mervin Aylwin, a British explorer and naturalist who made significant contributions to the study of flora and fauna in the Australian outback. His detailed journals and sketches provided valuable insights into the region's biodiversity during that era.