Cognomen 小雨 (Xiaoyu 
, 小雨 ) , all over the world, is a common surname. The last name 小雨 is habitual in Vanuatu, where it is quite a common surname, Taiwan, where it is quite a rare surname, and Singapore, where it is a rare surname. Not in comparison with a country's population, it is commonest in China, Taiwan, and Indonesia. More frequently, 小雨 is the forename as well as the last name.