Cognomen 斯韵 (Siyun 
, 斯韵 ) , in the world, is a rare last name. The surname 斯韵 is characteristic of South-eastern Asia, particularly Singapore, where it is a rare surname, Malaysia, where it is a very rare surname, and Indonesia. Measured by absolute frequency, it most frequently occurs in China, Indonesia, and Singapore. Predominantly, 斯韵 is the forename as well as the last name.