Sophie is Sophia's cuter, more irreverent near-identical twin. The top choice in the Netherlands and Number 2 in Scotland, and 3 in Ireland and Austria, Sophie is much less popular than the Number 3 Sophia in the US, though it still ranks in the Top 100.
Which do you like better? And do you see them as virtually the same name or very different? While you definitely couldn't name sisters Sophie and Sophia, you may have both on your short list and consider them distinctly separate choices. Sophie is lively and down-to-earth, while Sophia is more sophisticated and buttoned-up.
Sophie was the choice of both Eric Clapton and Luke Perry, as well as of Bette Midler for her now-grown daughter.
Sophie, Duchess of Wessex is the wife of Britain's Prince Edward, and her name is scattered throughout European royal history.
Sophie Zawistowska is the Polish heroine of the iconic William Styron novel Sophie's Choice, played in the 1982 film by Meryl Streep--who would play the mother of a Sophie decades later in Mamma Mia!.