Olivia is an English name that is thought to come from the Latin oliva, meaning "olive" or "olive tree." It is commonly used as a feminine alternative to the male name Oliver. Although there are records of its earlier use dating back to the thirteenth century, the name was popularized after William Shakespeare used it for his wealthy countess in the play Twelfth Night. Olivia has been a popular name for girls in English-speaking countries from the mid 1990s-present.