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Across the world, Sial (Si , Sial , سیال ) is a widespread unisex first name. The given name Sial is characteristic of Macao, where it is quite a common unisex name, Mongolia, where it is quite a common dominantly boy's, but seldom female name, and Tunisia, where it is quite a common gender-neutral name (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Indonesia, Algeria, and India. Also, Sial is the last name as well as the forename.
Sial is also a name for the fictitious and mythical characters: Si Wang-mu , the Fictional character in Ender's Game, Ender's Game hexalogy; Si , the fictional Siamese Cat from Lady and the Tramp; Si Crowell , the theatrical character in the play "Our Town" and Si Tumas , the mascot of the 2001 Southeast Asian Games in Malaysia.