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In the world, シエナ (Sienna , Siena , シエナ ) is quite a common predominantly female, but very seldom male first name. The forename シエナ is habitual in South Africa, where it is quite a rare girly name, Australia, and Hong Kong. In absolute terms, it is commonest in South Africa, the United States, and Philippines. Also, シエナ is the last name as well as the forename.
シエナ is also a name for the fictitious and mythical characters: Sienna Blake , the character on British soap opera, Hollyoaks, portrayed by Anna Passey; Siena Blaze , the fictional character in Marvel Comics and Sienna Cammeniti , the Fictional Character, Neighbours.