The name Jacquelin is a French feminine form of the masculine name Jacques, which ultimately derives from the ancient Hebrew name Jacob, meaning "supplanter" or "one who follows". The name first emerged in medieval France, evolving from the Latin Jacobus and Italian Giacomo.

In the Middle Ages, the name Jacquelin became popular among French nobility, particularly in the regions of Normandy and Brittany. It was often associated with the French aristocracy and gentry during this period. The earliest recorded use of the name dates back to the 12th century.

One of the earliest notable references to the name Jacquelin can be found in the 13th century French epic poem "Le Roman de la Rose", where a character named Jacquelin appears. This literary work played a significant role in popularizing the name in medieval France.

Throughout history, several notable individuals have borne the name Jacquelin. One of the earliest was Jacquelin de Montmort (c. 1235-1312), a French knight and crusader who accompanied King Louis IX on the Seventh Crusade to the Holy Land.

Another prominent figure was Jacqueline of Hainault (1401-1436), Countess of Holland, Hainault, and Zeeland, who played a crucial role in the political affairs of the Low Countries during the 15th century.

In the 16th century, Jacqueline de Longwy (1520-1561), a French noblewoman and daughter of Claude de Guise, became known as a patron of the arts and a renowned beauty.

During the 17th century, Jacqueline Pascal (1625-1661), a French Catholic nun and the sister of the famous philosopher and mathematician Blaise Pascal, gained recognition for her religious writings and devotion.

In more recent times, Jacqueline Cochran (1906-1980), an American pilot and entrepreneur, made significant contributions to the field of aviation, becoming the first woman to break the sound barrier and setting numerous records for speed and altitude.

These are just a few examples of the many individuals throughout history who have borne the name Jacquelin, highlighting its rich cultural and historical significance.