Surname Liuliu (Liuliu 
, 六六 , 溜溜 ) , around the world, is a rare cognomen. The cognomen Liuliu is habitual in Hong Kong, where it is a rare surname, Romania, and New Zealand. In absolute terms, it most frequently occurs in China, Indonesia, and Romania. More prevalently, Liuliu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Liuliu | Taiwan, China, Indonesia, Hong Kong, Romania |
| 溜溜, 六六 | China |
Люлю, လိုလို, လိုးလိုး, 六刘, 六柳, 刘六, 刘刘, 刘旒, 刘柳, 刘榴, 刘流, 刘浏, 刘溜, 刘留, 刘鎏, 刘镠, 劉劉, 旒旒, 柳刘, 柳柳, 柳榴, 柳流, 柳浏, 柳溜, 柳鎏, 桺桺, 榴六, 榴柳, 榴榴, 榴硫, 榴镏, 流刘, 流柳, 流流, 流溜, 流琉, 流留, 流鎏, 浏刘, 浏浏, 浏溜, 浏留, 浏鎏, 溜柳, 溜流, 溜留, 熘柳, 熘熘, 琉柳, 琉琉, 留六, 留刘, 留柳, 留流, 留留, 留鎏, 遛遛, 鎏旒, 鎏柳, 鎏瑬, 鎏鎏, 鎏镠, 镏镏, 镠浏, 镠镠, 飀飀, 骝骝, and 鹨鹨