The name Rubi originates from the Latin word "ruber," meaning "red." It is believed to have been derived from the Hebrew name "Ruby," which is also associated with the red gemstone of the same name. The earliest recorded use of the name Rubi dates back to the Middle Ages in various European regions.

One of the earliest historical references to the name Rubi can be found in a 13th-century Italian manuscript, where it was used to describe a woman with fiery red hair. This connection to the color red and its association with passion and vibrancy may have contributed to the name's popularity during that time period.

In ancient Hebrew texts, the word "rubin" is mentioned in the Book of Ezekiel, where it is described as one of the precious stones adorning the high priest's breastplate. This biblical reference may have influenced the name's adoption in certain religious and cultural contexts.

Throughout history, several notable figures have borne the name Rubi. One such person was Rubi Quintavalle (c. 1150-1235), an Italian woman who was one of the first followers of St. Francis of Assisi and a member of the Order of Poor Ladies, later known as the Poor Clares.

Another notable bearer of the name was Rubi Hernandez (1892-1965), a Mexican-American labor leader and civil rights activist who played a significant role in the struggle for farmworkers' rights in the United States.

In the literary world, Rubi Singh (1927-1986) was a renowned Indian poet and writer who wrote extensively in the Punjabi language and is considered one of the pioneers of modern Punjabi poetry.

The name Rubi also has a connection to the performing arts. Rubi Khanam (1909-1958) was a celebrated Indian singer and actress who was widely acclaimed for her contributions to the classical music tradition of Hindustani and her performances in several Bollywood films.

Lastly, Rubi Dee (1924-2005) was an American actress and singer who had a prolific career spanning over six decades, appearing in numerous Broadway productions, films, and television shows.

These historical figures and their diverse backgrounds highlight the global reach and enduring popularity of the name Rubi, which continues to be celebrated for its vibrant and captivating connotations.