>
Family name 柏木 (Kashiwagi , 柏木 , Касиваги ) , around the world, is a rare surname. The cognomen 柏木 is habitual in Singapore, where it is a rare surname, Japan, and Finland. Not in comparison with a country's population, the name is most common in Japan, the United States, and China. Also, 柏木 is the forename as well as the last name.