Sonia is a variant of Sophia. Sophia originates in Greek language and means "woman of wisdom". It has always been one of the most popular feminine given names in the Western world and it is currently number 2 in popularity in the United States. Sophia was the name of an early Christian martyr and has been a popular name among royalty over centuries. The famous bearers include the Italian actress Sophia Loren and the American director Sofia Coppola.