The name Jarrett has its origins in the French language, derived from the Old French word "jaret," which means "little spear" or "javelin." This etymology suggests that the name may have been historically associated with warriors or hunters who wielded these weapons.

Jarrett is believed to have first emerged as a surname during the Middle Ages, particularly in regions of France and later in England. The earliest recorded instances of the name date back to the 12th century, when it appeared in various legal documents and records.

One notable historical figure bearing the name Jarrett was Sir Thomas Jarrett, an English knight who lived during the 14th century. He served under King Edward III and participated in the Hundred Years' War against France.

In the 15th century, the name Jarrett gained prominence in Scotland, where it was associated with the influential Jarrett family of Lanarkshire. This family played a significant role in Scottish politics and contributed to the country's history.

During the 16th century, a Jarrett appeared in the writings of William Shakespeare. In his play "The Merry Wives of Windsor," one of the characters is named Jarrett, though it is unclear whether this was a reference to an actual person or simply a fictional name.

Another notable figure with the name Jarrett was Thomas Jarrett, an English mathematician and astronomer who lived in the 17th century. He made significant contributions to the study of celestial mechanics and the calculation of planetary orbits.

In the 18th century, Jarrett Blanchard was a prominent American silversmith and engraver based in Boston. His intricate works have become highly sought-after by collectors and are considered significant examples of early American craftsmanship.

As the name Jarrett spread across various regions and cultures, it continued to be associated with individuals of historical significance. For example, in the 19th century, Jarrett Lowell was a renowned American businessman and philanthropist who founded the Lowell Institute in Boston, which aimed to provide educational opportunities for the public.