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Cognomen Shuanyan (Shuanyan ) , in the world, is an extremely rare surname. Much more prevalently, Shuanyan is the forename as well as the last name.
Шуанянь, Щуаныан, 拴彦, 拴燕, 栓彦, 栓炎, 栓燕, and 栓艳
Zhao, and Zhang