The name Vaughan is of Welsh origin, derived from the Welsh word "bychan," which means "small" or "little." It was initially used as a surname, but over time, it evolved into a given name as well. The earliest recorded instances of the name date back to the 13th century in Wales.

In its original form, the name was spelled "Vaughan" or "Vachan," and it was often used as a descriptive nickname for someone of small stature. As the name spread beyond Wales, it underwent various spelling variations, including "Vaughn," "Vaughan," and "Vaugn."

One of the earliest known historical references to the name Vaughan can be found in the Welsh literary work "Mabinogion," a collection of medieval Welsh tales and myths. The name appears in the story of "Culhwch and Olwen," where one of the characters is named "Gwyn Vychan," which translates to "Little Gwyn."

Throughout history, several notable individuals have borne the name Vaughan. One of the most famous was Henry Vaughan (1622-1695), a Welsh metaphysical poet and author known for his religious poetry and his work "Silex Scintillans." Another prominent figure was Sir Thomas Vaughan (1621-1666), a Welsh alchemist and philosopher who wrote under the pseudonym "Eugenius Philalethes."

In the 19th century, Henry Vaughan (1809-1899) was a British diplomat and colonial administrator who served as Governor of the British Virgin Islands and the Leeward Islands. Similarly, Roger William Vaughan (1834-1922) was a British army officer and colonial administrator who served as Governor of the Windward Islands and Newfoundland.

More recently, Vaughan Williams (1872-1958) was an English composer known for his orchestral works, including the "Fantasia on a Theme by Thomas Tallis" and the "Lark Ascending." His compositions drew inspiration from English folk music and helped establish a distinctly English musical tradition.

These are just a few examples of notable individuals who have borne the name Vaughan throughout history, highlighting its enduring presence across various fields and eras.