Sif is a female name of Scandinavian origin, meaning "Bride." In Norse mythology, Sif is a golden-haired goddess associated with the earth and is known for her marriage to the thunder god Thor. She is also mentioned as the mother of Þrúðr and Ullr. The name Sif is derived from the Old Norse word "sifjar," which is connected to the meaning of "affinity, connection, by marriage." Scholars have proposed various theories about Sif's role and her association with fertility, family, and marriage. She has also been linked with the symbolism of the rowan tree. In modern times, Sif has inspired the name of a volcano on Venus and has been portrayed in popular culture, including Marvel Comics and video games.