The surname Nesbett has its origins in the northern English counties of Northumberland and Durham. It is an ancient name that dates back to the 12th century. The name is derived from the Old English phrase 'nether bitt', which means 'lower or lesser estate'. This suggests that the original bearer of the name lived on a smaller or less important piece of land.
The earliest recorded spelling of the name is found in the Pipe Rolls of Northumberland in 1195, where it appears as 'Nesebyt'. Other early spellings include 'Nesbit' and 'Nesbitt'. The name is also found in the Hundredorum Rolls of Durham in 1273, which lists a William Nesbyt.
In the 14th century, the Nesbett family held lands in Northumberland and were influential in the region. The name is mentioned in the Bain's Calendar of Documents Relating to Scotland, which references a Thomas de Nesbyt in 1347.
One of the earliest notable bearers of the name was Sir Thomas Nesbitt (c. 1430 - 1491), a Scottish knight and landowner in Berwickshire. He was a supporter of King James III of Scotland and fought in the Battle of Sauchieburn in 1488.
Another early bearer of the name was Sir John Nesbit (c. 1540 - 1615), a Scottish landowner and politician who served as a Member of Parliament for Berwickshire in the early 17th century.
In the 17th century, the Nesbitt family held lands in County Armagh, Ireland. One notable member was Sir Thomas Nesbitt (1654 - 1711), an Irish politician and landowner who served as a Member of Parliament for Armagh.
Robert Nesbitt (1668 - 1761) was an English mathematician and astronomer who made significant contributions to the study of comets and celestial mechanics.
During the 18th century, the Nesbitt family was influential in the West Indies, where they owned several plantations. One notable member was Archibald Nesbitt (1758 - 1823), a Scottish-born plantation owner in Jamaica.