The name Donavin is derived from the Gaelic language and has its roots in the Celtic cultures of Ireland and Scotland. It is a variant spelling of the more common name Donovan, which originated as a combination of the Gaelic elements "donn," meaning "brown" or "dark," and "dubhan," meaning "brown warrior" or "dark warrior."

In its early forms, the name was often spelled as Donnubhan or Donndubhan, reflecting its Gaelic origins. It gained popularity during the Middle Ages, particularly in Ireland, where it was associated with several notable historical figures.

One of the earliest recorded instances of the name Donavin can be found in the Annals of Ulster, a chronicle of medieval Irish history. The annals mention a Donavin mac Cerbaill, who was a king of Airgialla (a medieval Irish kingdom) in the 7th century.

Another notable figure bearing the name Donavin was Donavin O'Malley, a 16th-century Irish chieftain from County Mayo. He played a significant role in the Gaelic resistance against the English Tudor conquest of Ireland.

Moving beyond Ireland, the name Donavin also has a presence in Scottish history. One of the earliest recorded Scottish figures with this name was Donavin MacLeod, a 14th-century chief of the Clan MacLeod on the Isle of Skye.

In later centuries, the name Donavin remained in use, though often overshadowed by the more common spelling Donovan. One notable bearer of the name was Donavin Dhu (meaning "Donavin the Black"), a Scottish outlaw and folk hero from the late 17th century, who was renowned for his daring exploits against the English authorities.

Another historical figure named Donavin was Donavin O'Rourke, an Irish soldier who fought in the Napoleonic Wars and later served in the British Army during the early 19th century. He is remembered for his bravery and heroism on the battlefield.

While not as widely used as some other Celtic names, Donavin has maintained a presence throughout history, carrying the legacy of its Gaelic roots and the stories of those who bore this name in past centuries.