Sigourney

Sigourney is perhaps most famously associated with actress Sigourney Weaver, who actually adopted it as a stage name from a minor character in F. Scott Fitzgerald's 'The Great Gatsby'. The name has French origins and means 'daring king', which gives it a bold and regal flair. While it isn't very common, Sigourney exudes a sophisticated charm. Despite its rarity, it remains easily recognizable thanks to its Hollywood connection. Nicknames are not typical, but options like 'Siggy' could be endearing.