The name Donald has its origins in the Gaelic language and culture, dating back to medieval times. It is derived from the words "dòmhnall" or "domhnull," which loosely translate to "world ruler" or "world leader." This suggests that the name may have been associated with notions of power, authority, and leadership from its earliest usage.

One of the earliest recorded instances of the name Donald can be found in the ancient Irish text known as the Annals of Ulster, which mentions a "Domnall mac Áedo" in the year 681 AD. This reference indicates that the name was in use among the Gaelic peoples of Ireland and Scotland during the 7th century.

In Scottish history, the name Donald gained prominence with the reign of King Donald II, who ruled as the King of Scots from 889 to 900 AD. He was known for his fierce resistance against the Viking invasions and is remembered as a brave and formidable leader.

During the Middle Ages, the name Donald was particularly popular among Scottish clans and nobility. Notable figures from this period include Donald, Lord of the Isles (1336–1423), who was a powerful Scottish magnate and chief of Clan Donald, and Donald Balloch (c. 1430–1475), a Scottish chief of Clan Donald who played a significant role in the Wars of the Roses.

In later centuries, the name Donald continued to be used across various parts of the British Isles and beyond. One of the most famous bearers of the name was Donald Mackay (1591–1649), a Scottish general who fought for the Swedes during the Thirty Years' War and rose to the rank of Field Marshal.

Another notable figure was Donald Cameron of Lochiel (1695–1748), a Scottish chief of Clan Cameron who played a prominent role in the Jacobite risings of the 18th century, supporting the claims of the House of Stuart to the British throne.

Moving into the modern era, Donald Bradman (1908–2001), an Australian cricketer widely regarded as the greatest batsman of all time, is among the most celebrated individuals to bear the name Donald.

These are just a few examples of the many notable individuals throughout history who have carried the name Donald, reflecting its enduring presence and significance across various cultures and time periods.