Origin: Old Norse/Latin/Spanish
The name is believed to be of ancient Indo-European roots and in Norse Mythology, she is the personification of the sun. Sól appears in Old Nordic literature, such as, the Prose Edda, where she is attested as being the sister of the Moon (Máni) and the daughter of Mundilfari. It is foretold that in the coming days of Ragnarók, she shall be devoured by the Fenris wolf, but beforehand, she shall give birth to a daughter who will take her place after the great battle.
Many scholars have theorized that the goddess may be an extension of a proto-European bronze age goddess and may be related to the Sanskrit Surya. This theory is supported by the fact that similar attestations and names appear in other Pre-Christian European religions, such as the Lithuanian Saulė, the Gaulic Saulis and the Slavic Solnitse. In Roman mythology, Sol was personified as a man.
In modern Spanish, Swedish and Norwegian, it is the word for sun and is occasionally bestowed as a female given name. It has recently become more common in Latin America, where it was originally used as a short form of Marisol, but is now more often used as an independent given name.
Currently, Sol is the 27th most popular female name in Argentina, (2009).