The name Nicky is a diminutive form of the name Nicholas, which has its origins in the Greek name Nikolaos. Nikolaos is derived from the words "niko" meaning "victor" and "laos" meaning "people". Thus, the name Nicholas is interpreted to mean "victor of the people".

The name Nicholas gained prominence with Saint Nicholas, the 4th-century Bishop of Myra (modern-day Turkey). Saint Nicholas was renowned for his generosity and kindness, particularly towards children, and his legacy has been celebrated through the tradition of gift-giving during the Christmas season.

One of the earliest recorded uses of the name Nicky can be found in the 14th-century English poem "Sir Gawain and the Green Knight". The poem features a character named Sir Nicky, a knight of King Arthur's Round Table.

Throughout history, several notable individuals have borne the name Nicky. In the 16th century, Niccolo Machiavelli (1469-1527), the Italian Renaissance philosopher and political theorist, was often referred to as Nicky by his contemporaries.

During the 19th century, Nicky was a common nickname for men named Nicholas. One famous bearer of the name was Tsar Nicholas II of Russia (1868-1918), the last Emperor of Russia before the Bolshevik Revolution. He was affectionately known as Nicky by his family and close friends.

In the world of sports, Nicky Winmar (born 1965) is an Australian rules football legend who played for the St Kilda and Western Bulldogs clubs. He is best known for his iconic gesture in response to racial abuse during a match in 1993.

Another notable figure is Nicky Oppenheimer (born 1945), the former chairman of the famous De Beers diamond company and one of the wealthiest individuals in South Africa.

Nicky Wire (born 1969) is a Welsh musician and lyricist, best known as the bassist and occasional vocalist of the rock band Manic Street Preachers.