The name Lilyan has its origins in the Latin name Lilium, which means "lily" and refers to the beautiful white flower. It emerged in the Middle Ages as a feminine form of the male name Lilio or Lillio. The lily flower has long been associated with purity, innocence, and renewal in many cultures, which likely contributed to the name's popularity.

During the medieval period, the name Lilyan appeared in various forms, such as Lilian, Lillian, and Lilianne, across Europe. One of the earliest recorded instances of the name dates back to the 13th century, when a Lilyan de Caux was mentioned in the Hundredorum Rolls of Yorkshire, England.

In the realm of literature, the name gained prominence in the 16th century with the character Lilyan in the play "Alexander and Campaspe" by John Lyly. This play, performed before Queen Elizabeth I, helped to popularize the name among the English nobility.

Throughout history, several notable individuals have borne the name Lilyan. One of the earliest was Lilyan of Gascony (c. 1268-1343), a French noblewoman and the wife of Roger de Leyburn, an English baron. Another remarkable figure was Lilyan Berte (1548-1628), a French poet and composer who was part of the literary circle of the Pléiade.

In the 19th century, Lilyan Whiting (1847-1926) was an American journalist, author, and activist who advocated for women's rights and social reform. Lilyan Tashman (1896-1934) was a renowned American actress and trendsetter during the Golden Age of Hollywood.

Another notable Lilyan was Lilyan Becker (1915-2019), a British botanist and mycologist who made significant contributions to the study of fungi and their role in ecosystems. She lived an exceptionally long life, passing away at the age of 104.

While these are just a few examples, the name Lilyan has been borne by many accomplished individuals across different eras and fields, reflecting its enduring appeal and cultural significance.